The reaction you underwent was anhydride. Anhydride behavior is strikingly similar to that of acid chloride. the motion of electrons, use a curving arrow. consist of all lone pairings. Any leftover acetic anhydride was destroyed by the addition of water. the end result of adding water to acetic anhydride.
What is acetic anhydride?
An anhydride functions very much like an acid chloride. electron movement is depicted by the curved arrow. An anhydride functions very much like an acid chloride. the motion of electrons, use a curving arrow. consist of all lone pairings. In a condensation reaction involving the elimination of a water molecule, acetic anhydride is created from two acetic acid molecules.
D and L-structures phenylalanine's are made up of amino acids, which both have amino groups.
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Give the bond order (enter a number) for the carbon - oxygen bond:in the CH3OH (methanol) molecule -----------in the CH3CHO (acetaldehyde) molecule ----------in the CO (carbon monoxide) molecule---------
Bond order between C—O molecules of CH3OH (methanol), CH3CHO (acetaldehyde) and CO (carbon monoxide) is 1, 2 and 3 respectively.
Bond order between molecules depends on the type of bond between molecules. It means Bond order will be one if there is a single bond between molecules and 2 for double bond and 3 for Triple bond.
-In the case of methanol (CH3OH), there is a single bond between C and O.So,Bond Order is 1 in case of methanol.
-In Acetaldehyde (CH3CHO) there is a double bond between C and O.So, Bond order of Acetaldehyde is 2
-For carbon monoxide(CO), there is a triple bond between C and O. That's why the bond order of CO will be 3.
Bond strength means how strong a bond is, and it is directly proportional to the Bond Order.Shorter the bond, the stronger it is.
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How many grams in 4.65 x 1024 atoms of He?
Answer:
30.9 g He
Explanation:
To find the mass of the helium (He) sample, you need to
(1) convert atoms to moles (using Avogadro's Number)
(2) convert moles to grams (using the atomic mass of He)
It is important to arrange the conversions/ratios in a way that allows for the cancellation of units. The final answer should have 3 sig figs like the given value (4.65 x 10²⁴ = 3 sig figs).
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
Atomic Mass (He): 4.0026 g/mol
4.65 x 10²⁴ atoms He 1 mole 4.0026 g
-------------------------------- x -------------------------------- x ----------------- = 30.9 g He
6.022 x 10²³ atoms 1 mole
T/F a client has arterial blood gas results of ph 7.32; paco2 50; hco3 23; and sao2 80%. these results indicate:
Based on the information provided, the nurse determines that these results indicate Respiratory acidosis. (Option C)
Respiratory acidosis refers a condition that occurs when lungs are unable to remove carbon dioxide in entirety produced by your body. As a result, the blood and other body fluids to become too acidic. People that suffer respiratory acidosis often have headache and confusion, and breathing may appear shallow, slow, or both. Tests on blood samples typically show pH below the normal range. Respiratory acidosis occurs whenever a person experiences hypoventilation. Hypoventilation leads to a buildup of CO2, resulting in an accumulation of carbonic acid in the blood. Carbonic acid dissociates, liberating H+, and there is a decrease in pH. The patient is not experiencing metabolic acidosis. These results are not indicative of metabolic alkalosis or respiratory alkalosis (because the pH is high).
Note: The question is incomplete. The complete question probably is: A patient has the following arterial blood gas results: pH 7.32; PaCO2 56 mm Hg; HCO3- 24 mEq/L. The nurse determines that these results indicate: A) Metabolic acidosis B) Metabolic alkalosis C) Respiratory acidosis D) Respiratory alkalosis
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Explain why the following two elements
are isotopes. State the number of protons,
electrons, and neutrons each isotope
possesses.
121 Sn
50
119 Sn
50
Answer:4.8: lsotopes
Explanation:
An isotope is one of two or more chemical elements that exist in different forms. Varied isotopes of an element share the same atomic number and protons in their nuclei, giving them the same atomic weight. However, each elemental isotope has a different amount of neutrons, which changes its atomic weight.
What are isotope ?Isotopes are members of the same element's family but have variable numbers of neutrons despite having the same number of protons. The atomic number of an element on the Periodic Table is determined by the number of protons in its nucleus.
The name "isotope" refers to the fact that different isotopes of the same element occupy the same location on the periodic table. The term "isotope" is derived from the Greek words "the same place" (isos) and "the same place" (topos), respectively.
Name Tin¹¹⁹₅₀
Atomic Mass 118.71 atomic mass units
Number of Protons 50
Number of Neutrons 69
Number of Electrons 50
Name Tin¹²¹₅₀
Atomic Mass 118.71 atomic mass units
Number of Protons 50
Number of Neutrons 71
Number of Electrons 50
Thus, An isotope is one of two or more chemical elements that exist in different forms.
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Which solution(s) showed the greatest change in pH? Why?
The solution(s) that changed pH the most were those that were just water and a NaCl solution, without any buffers.
What factors into a solution's pH?A pH meter, universal indicator solution, or paper can all be used to determine the pH of a solution. The pH scale measures the amount of H+(aq) ions present in a solution. Although mol dm(-3) can be used to express the concentration of H+ ions, using the log(10) function makes the calculations easier.The pH value drops when a solution's hydrogen ion concentration rises, making the solution more acidic. The pH value also rises as the concentration of hydroxide ions in a solution does, making the solution more basic or alkaline.The solution(s) that changed pH the most were those that were just water and a NaCl solution, without any buffers.To learn more about pH value refer to:
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Starting with benzene and using any other reagents of your choice, design a synthesis for the molecule below. NH2
Retrosynthesis, Create a synthesis again for molecule below using benzene as the starting point and any additional reagents of your choosing.
How do synthesis and retrosynthesis work?Retrosynthesis seems to be the process of planning a viable path of synthesis starting with a straightforward precursor molecule, as opposed to synthesis, which is the procedure of combining simple processes to create an organic complex.
An explanation of a retrosynthetic stepAs a general rule, when designing a synthesis, we look at the finished result and decide how to carry out the last step rather than starting the with starting material and making that decision. Retrosynthetic analysis is the procedure used frequently in organic synthesis, and it is described in this sentence.
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What is the frequency of
an electron with a wavelength
of 225 nm?
[? ] × 10¹²] Hz
c = 3.0 x 108 m/s
The frequency of an electron with a wavelength of 225nm is 1.33 × 10¹² Hz.
How to calculate frequency?Wavelength is the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.
Wavelength is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency.
λ = v/f
According to this question, an electron has a wavelength of 225nm i.e. 2.25 × 10-⁷m. The frequency is calculated as follows:
2.25 × 10⁷ = 3 × 10⁸/f
f = 3 × 10⁸ ÷ 2.25 × 10-⁷
f = 1.33 × 10¹²Hz
Therefore, 1.33 × 10¹² Hz is the frequency of the electron.
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Which compound would have the most exothermic lattice energy?
A. NaF
B. NaBr
C. NaI
D. All have the same lattice energy.
E. NaCl
The compound that would have the most exothermic lattice energy is NaF. Option A.
Lattice energy is exothermic. Lattice energy is the energy released when gaseous cations and anions associate with each other to form a solid crystalline ionic solid. When paraffin burns in a flame, it reacts with oxygen to produce carbon dioxide and water.
This reaction is indeed exothermic as it releases heat into the atmosphere with the help of other products. The amount of heat released depends on the chemical reaction between hydrocarbons and oxygen. A reaction is exothermic if the sum of the enthalpies of the reactants is greater than the enthalpy of the products. If the enthalpy on the product side is large, the reaction is endothermic.
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A Cycle of Chemical Reactions of Copper PRE-LABORATORY ASSIGNMENT Finish the pre-laboratory assignments before the laboratory experiment. Read the manual of this experiment and complete the following questions. 1. a. Identify oxidation-reduction reactions in the copper cycle experiment. For each oxidation-reduction reaction, write half reactions to show what is oxidized and what is reduced. Identify acid-base reactions and precipitation reactions in the copper cycle experi- ment. Write equations for the corresponding reactions. b. How many mL of 3.0 M NAOH are required to neutralize 4.0 mL of 16.0 M HNO2? 2. 1N Copper. AplL tions and interpreting them in terms of chemical equations. You will also use a simple classification scheme for grouping chemical reactions by type. Finally, you will practice quantitative lab techniques by trying to recover the copper with minimal loss. AN OVERVIEW OF THE COPPER CYCLE One of the most fascinating aspects of laboratory experiments to new chemistry students is the variety of colors, odors, and textures encountered. The present experiment demonstrates that aspect by a sequence of striking changes in color, appearance, and bulk. By going through this experiment, students will develop laboratory techniques by the challenges of shepherding copper through all chemical changes with minimal loss. A schematic outline of the chemical reactions involved in the experiment is shown in Figure 5-1 HNO Cu(NO)2 Cu (1) NaOH (2) Zn (5) Cu(OH), 9VOA CUSO je() A (heat) 1000 Ht H,SO Cuo Figure 5-1. A schematic outline of the series of chemical reactions in the copper cycle. The overall copper cycle is then given as Cu(NO,)2(aq) Cu(s) Cu(OH)2(s) CuO(s) CUSO,(aq) Cu(s) The balanced equations corresponding to these steps are: Nitric acid is not only a strong acid but also a strong oxidizing agent, making it a very effective solvent for most metals. 1. (1) 4HNO,(aq)+ Cu(s) Cu(NOs)2(aq) + 2H20(l) + 2NO2(g) Many heavy metals form insoluble hydroxides which can be precipitated from solutions by sol- uble hydroxides such as NaOH. 2. (2) Cu(OH)2(s) + 2NANO,(aq) Cu(NO,)2laq) + 2NaOH(aq) Many transition metal hydroxides lose water upon heating, thus changing to oxides. For copper, this reaction happens at a relatively lower temperature and is accompanied by a striking color change, from blue to black. 3. (3) Cu(OH)2(s)Cu0(s) + H20(e) 4. Metal oxides, being base an hydrides, form salts with acids just as readily as do the bases themselves. CuO(s) + H,SO(aq) CuSO(aq) + H20(e) (4) 5. Chemically active metals, such as zinc, readily displace less active metals from their salts. CuSO&(aq) + Zn(s) Cu(s) + ZnSO(aq) (5) 6. The reaction used to remove excess Zn(s) left over from eq(5): Zn(s) +2H*(aq) Zn2t(aq) + H(g) (6) The last reaction is not explicitly shown in the cycle, but actually occurs twice. The first reaction is with H from excess HSO, as a side reaction during the reduction of CuSO and the second one is with HCL, as an intentional step for the removal of excess Zn remaining in solution after reduction of Cu2+ to Cu. Each equation, as given above, describes one of the colorful transformations, but it is easy to lose sight of their physical meaning if you merely look upon them as a bunch of symbols written on paper. To become more familiar with the chemical equations it is essential to try the following: Find out what the compounds, represented by the formulas, actually look like and what their chemical properties are. a. What class of compounds they belong to, e.g. acid, salt, etc., and what the generic properties of this class are, ie. what types of reactions they undergo. b. Similarly, try to categorize the equations (actually, the reactions they represent): oxidation- reduction (redox) reaction, acid-base reaction, precipitation reaction, replacement reaction, C. etc CLASSIFICATION OF CHEMICAL REACTIONS Precipitation In a precipitation reaction, two soluble substances react to form an insoluble compound, e.g. (7) CaCl2+ Na COs CaCO,(s) + 2NaCl CACO3 is insoluble in water so this salt will form a precipitate and fall out of the solution. 45 LAB 5: A CYCLE OF CHEMICAL REACTIONS OF COPPER
1 . a.
Solution :
a. The oxidation reduction reactio is
1. HNO₃ + Cu(3) --> Cu(NO₃)₂ + 2H₂O(l) + 2NO₂(g)
Half reaction
oxidation --> Cu(s) --> Cu(NO₃)₂(aq)
reduction --> HNO₃ -->NO₂
copper is oxidized and nitrogen is reduced
2 -> CuSO₄(aq) + zn(s) --> Cu(s) + ZnSO₄(aq)
Half reaction .
oxidation --> Zn(s) --> ZnSO4(aq)
Reduction --> CuSO₄ (aq) --> Cu(s)
zinc is oxidized and copper is reduced.
3 -> Zn(s) + 2H⁺(aq) --> Zn²⁺(aq) + H₂(g)
oxidation --> Zn(s) --> Zn²⁺(aq)
Reduction --> 2H⁺(aq) -->H₂(g)
Zinc is oxidized and hydrogen is reduced .
b . Acid - base reaction
CuO(s) + H₂SO₄(aq) -->CuSO₄(aq) + H₂O(l)
precipitation reaction
Cu(NO₃)₂(aq) + 2NAOH(aq) -->Cu(OH)₂ + 2NANO₃
2 . 21.33 mL of 3.0 M NAOH are required to neutralize 4.0 mL of 16.0 M HNO2
1 mole of NAOH required to neutralized the
1 mole of HNO₃
NAOH + HNO₃ --> H₂O +NANO₃
(M₁V₁)NAOH = (M₂V₂)HNO2
3 * V₁ = 4 * 16
V₁ = 64/3
V₁= 21.33 ml
The term oxidation was originally used to describe the reaction in which an element combines with oxygen.
Example: The reaction of magnesium metal with oxygen to form magnesium oxide involves the oxidation of magnesium.
The term reduction comes from the Latin root and means "to undo". So anything that goes back to magnesium metal is a reduction.
The reaction of magnesium oxide with carbon at 200°C to form magnesium metal and carbon monoxide is an example of the reduction of magnesium oxide to magnesium metal.
electrons were discovered, the chemist became convinced that redox reactions involve the transfer of electrons from one of his atoms to another.
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the following items describe fatty acid synthesis, amino acid synthesis, or both. drag the items to the appropriate box.
Fatty Acid Biosynthesis:-
Conducted by cyclic processes, requires acetyl-CoA carboxylase
Amino Acid Biosynthesis:-
Requires diverse enzymes, requires fixed nitrogen, uses glutamate dehydrogenase
Both:- Requires reducing energy, requires fixed carbon
Fatty acids are primary metabolites synthesized by complex, elegant, and essential biosynthetic machinery. Fatty acid biosynthesis begins with acetyl-CoA, and carboxylation produces the malonyl-CoA building blocks that are subsequently condensed and reduced in an iterative fashion until the fatty acid chain matures for use by the cell.
Amino acids are classically considered the building blocks from which proteins are synthesized. The biosynthesis of amino acids involves several biochemical pathways in which amino acids are assembled from other precursors. The biosynthesis of amino acids is distinct from that involving lipids or carbohydrates because it includes the use of nitrogen.
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The Lewis diagram for PO(OH)_3 is: The electron-pair geometry around the P atom in PO(OH)_3 is. There are lone pair(s) around the central atom, so the geometry of PO(OH)_3 is B. The Lewis diagram for XeO_3 is: The electron-pair geometry around the Xe atom in XeO_3 is There are lone pairs around the central atom, so the geometry XeO_3 is is
The electron-pair geometry around the P atom in PO(OH)₃ is tetrahedral. the molecular geometry of PO(OH)₃ is tetrahedral. the electron pair geometry of XeO₃ is tetrahedral and the molecular geometry is pyramidal.
The electron-pair geometry around the P atom in PO(OH)₃ is tetrahedral. There are lone pair(s) around the central atom is zero, so the molecular geometry of PO(OH)₃ is same as the electron pair geometry is tetrahedral.
The the electron pair geometry of XeO₃ is tetrahedral. There are lone pairs around the central atom is one lone pair of electrons, so the molecular geometry is different from electron pair geometry of XeO₃ is pyramidal.
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What happens to molecules when they slow down?; What happens if you slow down the particles in a liquid?; When the motion of water vapor molecules slows what most likely happens?; What happens if water molecules are speeded up?
The attraction between the molecules of a liquid causes them to organize themselves, and this happens when a liquid freezes. As the speed of water molecules rises, increasing their kinetic energy.
The kinetic energy of the liquid decreases as it cools, which causes the molecules to travel more slowly. By slowing the flow and allowing the soil profile to function as a filter, as it always has, it improves the water quality and reduces the amount of toxic algae in our water supplies. Condensation occurs when molecules in a gas cool down. Ice is created when the water's molecules stick together at around 0°C and form a solid. The molecules slow down and lose energy as they lose heat. They advance toward additional gas molecules. In the end, these molecules come together to create a liquid. The temperature of a material is determined by how quickly its atoms and molecules are moving.
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an empty steel container is filled with 0.0810 atm of hf. the system is allowed to reach equilibrium. if kp
The equation of the reaction is as follows;
H2(g) + F2(g) ⇄ 2HF
I 2 1 0
C -x -x +x
E 2 - x 1 - x x
We know that;
pH2 = 2.0 atm
PF2 = 1.0 atm
pHF = ??
Kp = 0.45
So;
Kp = (pHF)^2/pH2. pF2
0.45 = x^2/(2 - x) (1 - x)
0.45 = x^2/x^2 - 3x + 2
0.45(x^2 - 3x + 2) = x^2
0.45x^2 - 1.35x + 0.9 = x^2
0.55 x^2 + 1.35x - 0.9 = 0
x = 0.55 atm
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which of the following statements about cytotoxic t cells are true? choose all of the correct answers. Cytotoxic T Cells express TCRs.| Cytotoxic T cells express BCRs.| Cytotoxic T cells interact with antigens bound to Classi MHC molecules on other cells.| Cytotoxic Tools interact with antigens bount to Class MHC molecules on other colis | Activation of Cyloxic T cells requires the membrane protein CD4 | Activation of Cytotoxic T cells requires the membrane protein CD8.
In the given statement statement following are true about cytotoxic T cell;
-Cytotoxic T Cells express TCRs
-Cytotoxic T cells interact with antigens bound to Class I MHC molecules on other cells.
- Cytotoxic Tools interact with antigens bount to Class MHC molecules on other colis
-Activation of Cytotoxic T cells requires the membrane protein CD8.
A cytotoxic T cell that kills cancer cells, cells that are infected by intracellular pathogens (such as viruses or bacteria), or cells that are damaged in other ways.
Most cytotoxic T cells express T-cell receptors (TCRs) that can recognize a specific antigen. An antigen is a molecule capable of stimulating an immune response and is often produced by cancer cells, viruses, bacteria or intracellular signals. Antigens inside a cell are bound to class I MHC molecules, and brought to the surface of the cell by the class I MHC molecule, where they can be recognized by the T cell. If the TCR is specific for that antigen, it binds to the complex of the class I MHC molecule and the antigen, and the T cell destroys the cell.
The surface of a cytotoxic T-cell has something called a CD8 receptor. The CD8 receptor interacts with cells called major histocompatibility complex (MHC) Class I molecules to recognize when healthy cells are infected.
When the CD8 receptor recognizes an infected cell, it activates the cytotoxic T-cells. The cytotoxic T-cells create molecules designed to destroy the infection.
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write the formula for calcium chloride. explain how you determined this formula.; what information is given by the formula of an ionic compound; explain why sodium sulfide has a high melting point; what holds the ions together in sodium chloride? indicate the specific charges that are involved.; sodium sulfide cation formula; what are the two ways in which an ion can be made?; sodium sulfide cation charge; ways in which ions may form include ck12
A calcium salt, an inorganic chloride, and an inorganic calcium salt all refer to calcium chloride (CaCl2). It functions as fertilizer. Calcium and chlorine combine to form the ionic substance calcium chloride. It is both deliquescent and very soluble in water.
How is the formula for calcium chloride calculated?It is an ionic compound made up of the ions calcium and chlorine (the chemical formulas for calcium and chlorine are Ca2+ and Cl, respectively). Calcium chloride has the chemical formula CaCl2.
What details are provided by the compound formula?The number of atoms in each element of a compound is revealed by the chemical formula. It includes the symbols for the atoms of the constituent elements and their relative numbers.
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diborane- () is a colorless, highly reactive gas that will burst into flames when exposed to oxygen. the reaction is calculate the kilojoules of heat released per gram of the compound reacted with oxygen. the standard enthalpy of formations of , , , and are , , , and , respectively. round your answer to decimal place.
-78.5 kilojoules of heat released per gram of the compound reacted with oxygen.
What is Heat?
Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object. Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred.
Calculation:
B2H6 + 3O2 ------> B2O3 + 3H2O
∆H = ∑ ∆H(products) - ∑ ∆H(reactants)
∆H = { ∆H B2O3 + 3∆H H2O) - { ∆H B2H6 + 3∆H O2}
∆H = {(1273.5) + 3 ×(-285.8)} - {(36.4) + 0}
∆H = -2167.3KJ/mol
1mol of B2H6 = 2(10.8) + 6(1)
= 27.6g
∆H = -2167. 3KJ/27.6 g= -78.5 KJ/g.
Hence, the amount of -78.5 kilojoules of heat released per gram of the compound reacted with oxygen.
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What is an unsaturated solution?; What is a saturated solution?; What happens when you add more solute to an unsaturated solution?; What happens if a solute is added to a saturated solution?
An unsaturated solution is one in which more solute can be dissolved into the solution. The solution has yet not reached its saturation point and its concentration can be further increased.
A saturated solution is one in which no more solute can be dissolved. The solution has reached the maximum concentration that it possibly can at that temperature.
When more solute is added to an unsaturated solution, it dissolves into the solution, increasing the concentration of the solute. Unless the saturation point is reached in the solution, no solute settles at the bottom of the container. Any amount of solute can be added to a solution until it reaches its saturation point.
When more and more solute is added to a saturated solution, it has no effect on the concentration of the solution. The solute settles to the bottom of the container as it can not be dissolved anymore. Causing an increase in the temperature can increase the solubility of the solution and increase the amount of solute that can be dissolved into the solution.
A solution is a homogenous mixture of two or more substances in which one or more substances are dissolved in a medium such as liquid or a gas. The dissolved part that is usually less in mass is called the solute and the dissolving medium that is usually present in excess is called the solvent. An example of a solid-liquid solution can be a salt-water solution. An example of a liquid-liquid solution can be an alcohol-water solution.
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dishwashing liquid, toothpaste, and butter are used for different purposes, but they would all be considered products.
The products such as dishwashing liquids, toothpaste and butter are important in chemistry and have different uses.
Dishwashing liquid has the chemical method is C17H35COO- plus a metallic cation, both Na+ or K+. The very last molecule is known as sodium stearate and is a kind of salt. Depending at the metallic cation, soaps are both potassium salts or sodium salts organized as long-chain carboxylic acids.
Everyday items, inclusive of toothpaste, revolve round chemistry. Lets first start out with toothpaste's maximum widely known element Sodium Fluoride.
Some molecules like water (H20) or sugar (C6H12O6), butter does now no longer have one molecular formula; rather, it's far a aggregate of triglycerides.
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The conversion of acetyl chloride to methyl acetate occurs via the following two-step mechanism:
a. Write the rate equation for this reaction, assuming the first step is rate-determining.
b. If the concentration of OCH3 were increased 10 times, what would happen to the rate of the reaction?
c. If the concentrations of both CH3COCI and OCH3 were increased 10 times, what would happen to the rate of the reaction?
d. Classify the conversion of acetyl chloride to methyl acetate as an addition, elimination, or substitution.
a) The rate equation for this reaction, assuming the first step is rate-determining : k = k(CH₃O⁻) (CH₃COCl)
b) If the concentration of OCH3 were increased 10 times, what would happen to the rate of the reaction : k = k × 10(CH₃O⁻) (CH₃COCl)
The conversion of acetyl chloride to methyl acetate occurs via the following two-step mechanism:
a) The rate equation for this reaction, assuming the first step is rate-determining :
k = k(CH₃O⁻) (CH₃COCl)
b) If the concentration of OCH3 were increased 10 times, what would happen to the rate of the reaction :
k = k × 10(CH₃O⁻) (CH₃COCl).
c) If the concentrations of both CH3COCI and OCH3 were increased 10 times, the rate of the reaction :
k = k × 10(CH₃O⁻) × 10(CH₃COCl).
d)the conversion of acetyl chloride to methyl acetate as substitution reaction.
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What type of reaction is a precipitation?; What is a precipitation reaction example?; What is precipitation in a reaction?; Is precipitation a synthesis reaction?
The precipitation reaction is type of the double displace reaction. the substance which is dissolved is combine to form the one more solid products.
The precipitation reaction is the example of the double displacement reaction. when the dissolves substance in as aqueous solution are combine to form one or more solid substance are called as precipitation reaction. the precipitation reaction example are given as :
AgNO₃(aq) + KCl(aq) ----> AgCl + KNO₃(aq)
silver nitrate potassium chloride silver chloride potassium nitrate
(precipitate)
The AgCl. silver chloride is the solid form in the reaction as precipitate. this silver chloride is the insoluble salt formed as a product in the precipitate reaction.
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Create a Synthetic Route Fill in the missing information that describes how to synthesize the target molecule from the starting molecule. Be aware that this is a multi-step synthesis, and that you have not been told how many steps are required. Work backward from the target molecule one step at a time. To complete a step, you must correctly identify both the reaction conditions and the starting molecule for that particular step. Target molecule: Starting molecule: Show reaction map for: OH Chapters 6-11 OH vicinal diol cycloalkane OH OH (IR,ZR)-cyclohexane-1,2-diol
The chemist must first examine the necessary compound before planning a synthesis route (the target compound). by examining the target compound's functional groups.
What is the synthesis route?A "synthetic route" is a set of stages by which a chemical compound is put together from smaller, less complex bulk substances when a chemist working in the lab begins the synthesis of a compound.
What standards should an ideal organic synthesis meet?"The target molecule (natural or engineered) is produced from easily available, affordable starting ingredients in a single, straightforward, safe, resource-efficient, and ecologically acceptable operation that advances swiftly and effectively."This is generally regarded as the ideal (the ultimate practical) synthesis."
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Does the material dissolve in (mix with) water?
- baking soda
- baking powder
- salt
- sugar
- white flour
- white vinegar
- oil
Is the material less dense or more dense than water?
- baking soda
- baking powder
- salt
- sugar
- white flour
- white vinegar
- oil
The substances that mix with water are;
- baking soda
- baking powder
- salt
- sugar
- white vinegar
For the density of the materials
- baking soda - Less dense than water
- baking powder - Less dense than water
- salt - Less dense than water
- sugar - Less dense than water
- white flour - Less dense than water
- white vinegar - less dense than water
- oil - Denser than water
Which of the materials would mix with water?We know that the materials that can be able to mix with water are the material that are ionic in nature. As such a material that is ionic can be able to combine with water efficiently as if the material is polar, the polar bonds can also be able to well interact with the water molecule and dissolve.
If a substance is non polar then the substances would not be able to interact with water hence it can not dissolve.
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for the homogeneous solution consisting of br2 and ccl4 , indicate the type of forces that are involved.
Br2 exhibits London dispersion forces because diatomic elements are nonpolar and nonpolar molecules are only capable of forming temporary dipoles. CCl4 also exhibits London dispersion Force of attraction.
What is London dispersion force?The London dispersion force is a temporary attractive force that results when electrons in two adjacent atoms occupy positions that results in atoms forming temporary dipoles. This force is also called induced dipole-induced dipole attraction.
London dispersion forces are the type of intermolecular force acting between atoms and molecules that are electrically symmetric; that is, electrons are symmetrically distributed with respect to nucleus. London dispersion force depends on the atomic or molecular weight of material.
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Increasing concentration of dissolved CO2 raises the _______ of ocean water.basicityacidityfertilityturbiditysalinity
The ocean's hydrogen ions rise with an increase in dissolved CO2 concentration.
In what ways is concentration measured?It is possible to describe the mass of a solute in a given volume or the number of moles of a solute in a given volume when describing the concentration of a solute in a solvent. These are essentially conversion factors that establish the molecular mass or equivalent mass of a solute in relation to the volume of a solution.
The importance of concentrationYou can use your resources more wisely and address issues more successfully when you're focused. The likelihood that you may overlook crucial information decreases while you are focused. You'll remember information more quickly if you maintain concentrate.
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_____ is a substance found in the earth such as oil or gas, composed of chemical compounds consisting primarily of hydrogen and carbon.
Petroleum is an earthly material, such as oil or gas, made up mostly of chemical compounds of the elements hydrogen and carbon.
what makes up petroleum?Since hydrocarbons only include carbon and hydrogen, petroleum is primarily a mixture of these two elements. Paraffins, cycloalkanes, and aromatic hydrocarbons are the most prevalent constituents.
what is meant by petroleum?Under the earth's surface, petroleum, commonly known as crude oil, is a naturally occurring liquid that can be converted into fuel. Petroleum, a fossil fuel, is produced over time when organic matter breaks down and is used as a fuel for machines, heating systems, and transportation. It can also be used to make plastic, which is then used in other products.
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Which of the following statements is correct regarding Galvanic cell ?
A. It converts electrical energy into chemical energy
B. It converts electrolyte into individual ions
C. It converts metal from its elemental state to the combined state
D. It converts chemical energy into electrical energy
The correct statement regarding galvanic cells is that it converts chemical energy into electrical energy
An electrochemical cell that converts the chemical energy of spontaneous redox reactions into electrical energy is known as a galvanic cell or a voltaic cell. Galvanic cell Voltaic cell is an electrochemical cell that makes use of chemical reactions to generate electrical energy
Galvanic cells usually harness the electrical energy available from the electron transfer in a redox reaction to perform useful electrical work. The key to gathering the electron flow is to separate the oxidation and reduction half-reactions, connecting them by a wire, so that the electrons must flow through that wire
Galvanic cells derives its energy from spontaneous redox reactions, while electrolytic cells involve non-spontaneous reactions and thus require an external electron source like a DC battery or an AC power source.
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How many grams of the solute mgso4 with molar mass 120g/mol are required to make 65.0ml of a solution that is 0.245m
The mass of MgSO₄ required to make 65.0ml of a solution that is 0.245 M is equal to 1.911 g.
What is the molarity?We can determine the concentration of a substance in a solution in terms of molarity
The molarity of a given solution can be calculated from the number of moles of a solute in a solution in a liter.
The Molarity of the solution can be determined from the formula mentioned below:
Molarity (M) = Moles (n)/Volume of the Solution ( in L)
Given, the molarity of MgSO₄ solution = 0.245 M
The volume of the MgSO₄ solution, V = 65ml = 0.065 L
The molar mass of the MgSO₄, M = 120 g/mol
Molarity = m/(M ×V)
0.245 = m/(120 ×0.065)
m = 1.911 g
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Can someone help me answer these questions? giving brainliest 50 point!!!
The two ions K+ and Ca?+ each have 18 electrons surrounding the nucleus. Which would you expect to have the smaller radius? Why?
Answer:
Ca+
Explanation:
Ca+ because it has 20 protons to pull the nucleus in where K+ only has 19 protons.
What is splitting a uranium atom called?; What is the process of splitting a nucleus called?; What happens when a uranium nucleus splits?; What is the process of splitting the uranium nucleus into two smaller nuclei?
When an U-235 nucleus absorbs an extra neutron, it quickly breaks in two parts. This process is known as the fission .
Each time a U-235 nucleus splits up, it releases the two or three neutrons. Hence, possibility exists for creating a chain reaction.
In nucleus of each atom of uranium-235 (U-235) are 92 protons and 143 neutrons, for the total of 235. The arrangement of the particles within uranium-235 is somewhat unstable and nucleus can disintegrate if it is being excited by an outside source.
Production of neutrons is the main purpose of the MIT Research Reactor. The center active core contains an enormous number of neutrons that are moving at extremely high speeds in all directions while it is active.
Six boron-stainless steel control blades that are installed vertically next to the fuel components in the MIT reactor's uranium nuclei primarily regulate the pace of fissions. Neutrons can be absorbed by boron without being reemitted.
The amount of neutrons that the control blades absorb from the uranium when they are fully implanted is too great for a chain reaction to continue. The reactor's control blades are lifted very gradually to turn it on. more neutrons are produced as less and fewer of them are absorbed.
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