In a 34S2-, the number of protons is 16, number of electrons is 18, and number of neutrons is 18.
Sulphur 34 is the stable isotope of sulfur. Sulfur has an atomic number of 16 and relative atomic mass of 34. Atomic number refers to the number of protons found in the nucleus of every atom of that element. Hence, the number of protons would be 16 for Sulphur 34. Atomic mass refers to number of protons and neutrons in the nucleus of the atom. Hence, the number of neutrons would be 18 for Sulfur 34. The number of electrons in a neutral atom is equal to the number of protons. However, in the give ion, 34S2- which is negatively charged to negative two implying that it has two extra electrons, hence the number of electrons is 18.
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critical thinking questions: 5. how many electrons are in each of the atomic orbitals of monatomic hydrogen? 6. how many electrons are in the molecular orbitals of diatomic hydrogen?
The number of electrons in each of the atomic orbitals of monoatomic hydrogen will be one electron. And the number of electrons in the molecular orbitals of diatomic hydrogen will be two electrons.
A hydrogen atom is electrically neutral, containing a single proton and a single electron bound to the nucleus by the Coulomb force. Hydrogen atoms are so reactive that they combine with almost all elements. Hydrogen contains 1 electron in 1 orbital.
Each such orbital can be occupied by a maximum of two electrons, each with its spin quantum number.
Orbitals are spaces that have a high probability of containing an electron. In other words, an orbital is an area where the electrons live.
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2. Which process best demonstrates a chemical change in distilled water?
A. Freezing the water
B. Separating the water into its
elements
C. Calculating the water's density
D. Dissolving sugar in the water
A chemical change involves breaking or making or chemical bonds and the formation of new products. Thus, the separating water into its elements breaks a chemical bond and it is a chemical change.
What is a chemical change?A chemical change involves breaking or making of chemical bonds and the formation of new products. Whereas, a physical change involves no changes for chemical bonds.
Changes in states, dissolving solutes, freezing etc are physical changes and does not involves formation of new products. Measuring physical quantities are based on these physical changes.
Water when decompose into its constituent elements, it is undergoing a chemical change. Here, elements separated from water are the products of this decomposition reaction. Thus, option B is correct.
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Why noble gases are non-reactive?
Noble gases are non-reactive due to having a valence outermost shell.
In the field of chemistry, noble gases can be described as gases that are present in group 8 of the periodic table of elements.
All noble gases have their outermost shell that is full. This means that the outermost shell has valence electrons in its outermost shells and their valency is complete. Hence, noble gases do not take or lose electrons.
As there is no exchange of electrons for noble gases due to their achieved valency of outermost shells, hence noble gases are non-reactive. No other group of elements in the periodic table has outermost valence electrons and hence shows some kind of reactivity.
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what was the observed major product in the reaction of 1-bromobutane with methoxide?
An example of nucleophilic substitution is this procedure. Additionally, sodium methoxide and (S)-2-bromobutane engage in a bimolecular nucleophilic process in acetone (SN2).
What is meant by a bimolecular example?
The second type of micro process that can result in a chemical reaction is the collision of two particles. Such a process is known as a bimolecular process. A typical example of the a bimolecular process is the NO2+CONO+CO2 reactions involving nitrogen dioxide and carbon monoxide. dioxide.
What do the terms "bimolecular" and "unimolecular" actually mean?
A unimolecular reaction only involves one reactive molecule. Two reactant molecules collide during a bimolecular reaction. A termolecular activity is a straightforward procedure that only involves three molecules.
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for this question consider the figure to the right shows an energy level diagram for a certain atom
1) The atom's ground state is A
2) There are two states of excitement
3) The line spectrum has three lines.
4) The wavelength of the transition A-B is the shortest.
5) The transition between B and C has the longest wavelength.
The energy diagram is what.
We are aware that the energy diagram relates to the way in which the atom's electrons can be grouped into different energy levels. The ground state, the lowest energy level, would always be where the energy levels would start. The excited states of the atom or the molecules, depending on the situation, are the other higher energy levels that are above the ground state of the atom.
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how are the orders of the reactants in the rate law determined? by doing an experiment they are the coefficients in front of the balanced equation i have to ask the professor none of the above
rate is directly propotional to [tex][concentration]^{[order]}[/tex]
orders of the reactants in the rate law determined by diong an experiment
It is an experimental concept
option 1 correct
kinetics tells you speed of the reaction , kinetics tells you how fast you how fast the reaction is occurring
A rate term expresses the response in terms of changes in reactant or product concentrations over time. Reaction rates can be expressed in terms of either reactants or products in a reaction.
There are several rules for writing rate equations:
1) Reaction equations have a negative sign. This is because reactants are depleted or diminished.
2) The product description is positive. It's because you gain weight.
3) All rate equations for different reactants and products must be the same to be accurate. (This means that the equation must be corrected for reaction stoichiometry)
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some polyprotic acids can form more than one salt depending on the number of h's that react with base. write the balanced net ionic reaction between koh and h2so4 (react both h's).
Some polyprotic acids can form more than one salt depending on the number of h's that react with base.
Hence, the balanced chemical equation is:
[tex]H_2SO_4+2KOH \to K_2SO_4+2H_2O[/tex]
This is an example of a double replacement (double displacement) reaction.
What are polyprotic acids?
Polyprotic Acid is a chemical that can donate more than one proton. Diprotic and Triprotic are two distinct varieties of polyprotic acid that can, respectively, donate two and three protons.Depending on how frequently dissociation takes place, polyprotic acids have a variety of dissociation constants, including Ka1, Ka2, Ka3, and equivalence points.Given its ability to provide an aqueous solution with two hydrogen atoms, sulfuric acid (H2SO4) is a polyprotic acid. In particular, the fact that sulfuric acid has two hydrogen atoms available makes it a diprotic acid.A triprotic acid is orthophosphoric acid (H3PO4).To know more about polyprotic acids, click the link given below:
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Determine 1 the diagram represent a chemical or physical change? Explain your answer
Determine one the diagram represent a chemical or physical change is given below.
A physical change can be recognized if it is reversible, especially if it involves a phase transition. For instance, if water is frozen into an ice cube, it can be melted back into water. The modification reversible. Not all physical alterations are simple to undo. (With few exceptions),The color change, bubbles form, or a precipitate form. All of them point to a chemical alteration rather than a physical one. Is the final product's chemical composition the same as it was before the change. The change is physical if the response is yes. If the response is no, a chemical change has occurred. A physical reaction and a chemical reaction differ in composition. In a chemical process, the makeup of the components changes; in a physical change, the appearance, smell, or straightforward exhibition of a sample of matter changes without changing its composition. Despite the fact that we refer to them as physical "reactions," nothing is actually changing. A change in the substance in question's elemental composition is necessary for a reaction to occur. Therefore, from now on, we will simply refer to bodily "reactions" as physical changes.
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4. The molar mass of starch is 359.33 g/mol. Given that the concentration of starch in the reaction mixture is 0.006% m/v, a. Calculate the molarity of starch in the reaction mixture. b. If 3 drops of a starch solution were added to the reaction mixture to obtain a concentration of 0.006% m/v, and each drop is 0.05 mL, calculate the molarity of the starch solution.
359.33 g/mol is indeed the molar mass for starch. In light of the reaction mixture's 0.006% m/v starch concentration.
What exactly are molar mass and mol?The SI unit used to measure a material's amount is the mole. The word "mol" is used to denote it. It is also referred to as the area of a substance containing an equal number of distinct entities. A substance's molar mass is the weight in kilograms with one mole of that substance.
What exactly are molarity and normality?As a double of molarity, normality can be defined. While "molarity" refers to the amount of a substance or ion in a liquid, "normality" relates to the molarity of just the base or acid component, respectively.
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Draw an MO energy diagram and predict the bond order of Be2+ and Be2-. Do you expect these molecules to exist in the gas phase?
Both have a bond order of +12, both Be+2 and Be−2 will exist in gas phase. The Be2bond +'s order is Because the bond orders of Be2+ and Be2 are both 1/2,
which are both negative and positive, the bond order of Bez is 0 and can exist in the gas phase. A molecular orbital diagram, often known as a MO diagram, is a qualitative descriptive tool used to explain chemical bonding in molecules using the linear combination of atomic orbitals (LCAO) approach and general molecular orbital theory. These theories are based on the fundamental idea that as atoms join together to form molecules, a specific number of atomic bond order combine to create the same number of molecular orbitals, even though the orbitals' electrons may be distributed differently. When discussing even comparatively simple bond order polyatomic compounds, like methane, this method gets more complicated. It works very well for simple diatomic molecules like dihydrogen, dioxygen, and carbon monoxide.
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consider the species n2–, n2, and n2+. which of these species will be paramagnetic?
The paramagnetic species in the list are; [tex]N_{2} ^- and N_{2} ^+[/tex]
What is Para magnetism?We know that the term Para magnetism has to do with a situation in which a specie has unpaired electrons. As we fill in the molecular orbitals, we have to look out for the species in which we would have unpaired electrons.
We can see that that the nitrogen molecule cation and the nitrogen molecule anion both have unpaired electrons thus they are paramagnetic. The nitrogen molecule is a diamagnetic specie because it as paired electrons.
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the gas described in parts a and b has a mass of 1.66 grams. the sample is most likely which monoatomic gas?
the sample is most likely which monoatomic gas is 39.92 g/mol if the gas described in parts a and b has a mass of 1.66 grams.
Does CO2 have two atoms or just one?triatomic compound Three atoms make up the molecule, which is what it is. Ozone (O3), water (H2O), carbon dioxide (CO2), etc. are some examples. Monoatomic molecule: These really are electrically uncharged molecules made up of four or more atoms joined together by covalent bonds.
Mass of the gas m = 1.66
The calculated temperature T = 273 + 20 = 293
We have to calculate molar mass to determine the gas
Molar Mass = mRT / PV
M = (1.66 x 8.314 x 293) / (101.3 x 1000 x 0.001)
M = 4043.76 / 101.3 = 39.92 g/mol
How can one recognize monatomic gas?Ans: There are some elements that are monatomic, which indicates that each one of their molecules consists of just one monatom. An example of an atoms element is the gas helium. First comes hydrogen H2, followed by molecules of oxygenation O2 and chlorine Cl2.
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a pollutant decays with a first-order rate constant of 0.726 min-1. calculate the half-life of the pollutant (in minutes).
A pollutant decays with a first order rate constant of 0.726 min⁻¹ . The half life of the pollutant will be 0.95 minutes.
Half -life of a chemical reaction is defined as , " the time taken for the concentration of a given reactant to reach half or 50% of its initial concentration" .
Half life of a first order reaction is given as
t(1/2) = 0.693/ K
where K is the rate constant.
given,
here, rate constant is k= 0.726 min⁻¹
therefore, half life of the pollutant:
t(1/2) = 0.693/ 0.726 min⁻¹
t(1/2) =0.95 min
Thus, the half-life of the pollutant is 0.95 minutes
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water can be formed in the following reaction: 2h2 o2 --> 2h2o if you have 8 moles of hydrogen gas (h2), how many moles of oxygen gas (o2) will you need to make as much water as possible?
The number moles of oxygen gas (o2) will you need to make as much water as possible is 4 moles.
The chemical reaction is given as :
2H₂ + O₂ ---> 2H₂O
according to the reaction :
1 mole of O₂ react with the 2 moles of the hydrogen gas to produce 2 moles of the water.
2 moles of the H₂ = 1 moles of O₂
8 moles of the H₂ = 8 × 1/ 2 = 4 moles of O₂
Thus, water can be formed in the following reaction: 2H₂ + O₂ ---> 2H₂O if you have 8 moles of hydrogen gas (H₂), moles of oxygen gas ( O₂) will you need to make as much water as possible is 4 moles.
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Which of the following is the disadvantage(s) of hydrogen? a) Inflammability b) Leaking c) Explosive limit d) All of the mentioned.
Answer:
d
Explanation:
both of them are true according to me
predict the major product for the reaction. the starting material is a five carbon ring with a double bond between carbons 1 and 2. there is a methyl substituent on carbon 1. this reacts with h b r and peroxide. draw the major product.
The major product for the reaction. the starting material is a five carbon ring with a double bond between carbons 1 and 2. there is a methyl substituent on carbon 1.reacts with HBr and peroxide form 1-bromo2-methy cyclopentane.
The a five carbon ring with a double bond between carbons 1 and 2 , the methyl is substituted on carbon one the compound in 1-methyl cyclopentane. the reaction with HBr proceeds with the free radical mechanism because peroxide form hydroxide radical.
H₂O₂ -----> OH° + OH°
OH° + H - Br ----> Br° + H₂O
the product form in the reaction is the 1 - bromo-2- methyl cyclopentane.
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Why do some bodies in the Solar System maintain countless well-preserved indications of impacts on their surface
even after many millions of years? Give some examples and explain in detail how at least 2 factors contribute to this
Answer:
There are several factors that contribute to the preservation of impact craters on the surface of bodies in the Solar System.
One factor is the lack of erosion or weathering on these bodies. Many of the bodies in the Solar System, such as the Moon and many of the outer planets' moons, do not have atmospheres or hydrospheric systems (like oceans, lakes, or rivers) that can erode or weather the surface over time. This means that the surface of these bodies is not subjected to the same types of processes that can wear away or smooth out surface features on Earth. As a result, impact craters and other surface features can remain well-preserved for millions of years.
Another factor that can contribute to the preservation of impact craters is the presence of a surface layer of material that is resistant to erosion. For example, on the Moon, the surface is covered by a layer of fine-grained dust called regolith, which is made up of small rocks and particles that have been ground up by impact and other processes. This regolith layer is relatively soft and easily disturbed, but it also acts as a protective layer that can preserve the underlying surface features. Similarly, on some of the outer planets' moons, there may be a layer of ice or other materials that can act as a protective layer and preserve impact craters and other surface features.
Examples of bodies in the Solar System that have well-preserved impact craters include the Moon, Mars, and many of the outer planets' moons, such as Europa and Ganymede. The lack of erosion and the presence of protective surface layers on these bodies have allowed them to maintain countless well-preserved indications of impacts on their surfaces even after many millions of years.
Explanation:
To solve this, we must know each and every concept behind solar system. Therefore, impact craters enable scientists to investigate the geological history of a planet.
What is solar system?The Solar System is composed of the Sun and the objects that orbit it. It was created by the gravitational collapse of a massive interstellar molecular cloud 4.6 billion years ago. The Sun contains the vast bulk of the system's mass (99.86%)
Several processes contribute to the preservation of impact craters on the surfaces of Solar System worlds. The absence of erosion or weathering on these bodies is one cause. Another aspect that can aid in the preservation of impact craters is the existence of an erosion-resistant surface layer of material.
Therefore, impact craters enable scientists to investigate the geological history of a planet.
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will hcl (g) or nacl (s) be more soluble in the solvent ch3och3? why? multiple select question. nacl (s) will be more soluble in ch3och3. ion-dipole forces in a nacl solution are more likely to overcome solute-solute interactions than dipole-dipole forces in a hcl solution. the dipole-dipole forces in an hcl solution are similar in strength to the dipole-dipole forces between ch3och3 molecules. hcl (g) will be more soluble in ch3och3. hcl is capable of hydrogen bonding to ch3och3, whereas nacl is not.
Similar to the dipole-dipole interactions between CH3OCH3 molecules, the dipole-dipole forces in an HCl solution are quite strong. - In CH3OCH3, HCl (g) will be more soluble.
In carbon tetrachloride, which of the following chemicals is most likely to dissolve?This means that whereas non-polar solutes are more soluble in non-polar solvents, polar solutes are more soluble in polar solvents. The non-polar material will therefore be most soluble in CCl4, considering your choice of compounds.
The multiple choice question about the fundamentals of solubility asks, "How does the saying like dissolves like apply?"For a solute to be soluble, it needs to share the same polarity as the solvent. The main message is that a polar solute will dissolve in a polar solvent.
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compare the conjugate bases of these three acids. acid 1: sulfurous acid , h2so3 acid 2: phosphoric acid , h3po4 acid 3: hydrogen sulfide , hs- what is the formula for the strongest conjugate base ?
The formula for the strongest conjugate base is HCO₃⁻ (hydrogen carbonate).
The chemical formula for the most efficient conjugate base is HCO₃⁻, which refers to the compound hydrogen carbonate. When we analyze the relative acidic strength of Hf, H₂CO₃, and hydrogen sulfide (H₂S), we find that F⁻ has the lowest relative acidic strength. Since we already know that strong acids have the weakest conjugate bases, this leads us to the conclusion that F⁻ is the weakest conjugation base.
As a result, HCO₃⁻ possesses an effective conjugate base. Hydrogen carbonate is an intermediate form that results from the deprotonation of H₂CO₃. It is also known as bicarbonate, and it is amphoteric in its natural state. Bicarbonate plays an essential metabolic role in the system that maintains the physiological pH buffering balance.
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write the chemical formula for the conjugate acid of the aniline, c6h7n. (enter the elements in the order: c, h, n, o.)
The chemical formula for the conjugate acid of the aniline: Phenylammonium ion (C₆H₅NH₃⁺).
What is conjugate acid?Conjugation, also known as a verbal paradigm, derives from the Latin meaning "link together" and relates to the inflection of verbs for the person, number, tense, and mood.
A conjugate acid has one extra H atom and one more (+) ve charge than the base from which it was created. When an acid contributes a proton to a base, conjugate acid is created. A conjugate base has one fewer H atom and one more (-) ve charge than the acid from which it was produced.
Thus, the chemical formula for the conjugate acid of the aniline: Phenylammonium ion (C₆H₅NH₃⁺).
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what steps are needed to prepaare phenylacetylene, c6h5c≡ch, from c6h5ch2ch2br. be sure to answer all parts.
We are asked to devise a synthesis of phenylacetylene, \text{C}_6\text{H}_5\text{C}\equiv\text{CH}C6 h5 c=ch
What is the purpose of phenylacetylene?Application. In a study, phenylacetylene was utilized to examine the process of product generation during the phenylacetylene oxidative carbonylation reaction, which was catalyzed by palladium. When trimethylaluminum is present, terminal acetylene is employed to transform nitrones into alkynyl hydroxyl amines.
What Is phenylacetaldehyde water soluble?The parent chemical of the phenylacetaldehyde class of molecules, phenylacetaldehyde is an aldehyde made up of acetaldehyde with a phenyl group.
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predict whether the so2 and so3 are polar or nonpolar molecules.
SO2 is polar and SO3 is non - polar because of substituent differences and especially because of geometry.
What are polar and non polar molecules?When things are different at each end then we call them as polar. Some molecules have both positive and negative ends, then we call them polar. If they don't have then we call them non-polar. Things that are polar attract and repel each other.
As SO2 is bent, therefore the dipoles do not cancel and the molecule is polar. The difference in electronegativity between sulfur and oxygen is enough for dipole moments to form but the geometry of sulfur trioxide cancels their effects, making the molecule a nonpolar.
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Which of the following 0.1 M aqueous solutions will exert highest osmotic pressure ?
A .NaCl
B. BaCl2
C. MgSO4
D. Al2(SO4)3
Al2(SO4)3 will exert the highest osmotic pressure for the same concentration.
1 molecule each of Al2(SO4)3, BaCl2, NaCl and Na2SO4 will dissociate to provide 5, 3, 2, 3 ions respectively. Thus, Al2(SO4)3 provides maximum number of ions in aqueous solution.
What is Osmotic pressure ?The osmotic pressure is the least amount of pressure that must be applied to a solution in order to stop a semipermeable barrier from allowing a solution's pure solvent to pass through. Additionally, it is described as a measurement of a solution's propensity to absorb its pure solvent through osmosis.
Water cannot pass through a semipermeable membrane due to osmotic pressure. Utilizing the osmotic pressure formula, one may determine the pressure that prohibits osmosis from taking place. Assume that you are preparing a saltwater solution. The mixture of water and salt (solute) will make up the solution (solvent).
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Balance the following nuclear equations
There can be emissions of radiations like gamma radiation. There can be emission of particles too like alpha particle. Therefore, the blanks can be filled using ₁H¹ and ₁₅P³⁰ .
What is nuclear decay?Nuclear decay is process in which the radioactive element releases particles or radiations. Alpha particles is ⁴₂He. Alpha particle is nothing but helium particle.
The balanced nuclear equation for the given reaction can be given as
₃Li⁷ + ₁H¹ [tex]\rightarrow[/tex] 2 ₂He⁴
₁₃Al²⁷ + ₂He⁴ [tex]\rightarrow[/tex] ₁₅P³⁰ + ₀n¹
Therefore, the blanks can be filled using ₁H¹ and ₁₅P³⁰
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acetaminophen is insoluble in water, soluble in sodium hydroxide solution, insoluble in hydrochloric acid, and insoluble in dichloromethane. if your panacetin sample contained acetaminophen, where would it be separated in the separation scheme? explain your reasoning.
It would fail at the first step because the acetaminophen and sucrose would stay solid and would not be separated due to both being insouble in DCM.
A method that courts might employ to modify the case management procedure to meet the needs of specific cases is differentiated case management (DCM). DCM offers a method for handling each case in accordance with the amount of time and resources needed from the legal system.
If you simply have a few points or a small budget, the Discrete Control Module (DCM) is the ideal option for controlling equipment at remote locations. You can control up to 16 control relays while keeping an eye on two alarm inputs.
Acetaminophen, usually referred to as paracetamol, is a drug used to treat fever and mild to moderate discomfort. Tylenol and Panadol are examples of popular brand names.
It lowers temperature and eases pain.
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Where is blood under greatest pressure? A) arteries B) capillaries C) veins D) lymph vessels
The greatest blood pressure is found in
A) Arteries
Arteries are the blood vessels that take oxygenated blood from the heart to other parts of the body. Though these are the primary blood vessels that carry blood and have a considerable diameter they have the highest blood pressure due to the force with which the blood is pumped by the heart
Capillaries have a diameter of 8-10μm such that only RBC's and small proteins are able to pass through them while the white blood cells (WBC's ) move around as extracellular fluid.
Veins are primary blood vessel that carry the deoxygenated blood from various parts of the body to the heart. The blood pressure present in veins is comparatively lower in comparison to that of arteries as they transport blood against the force of gravity.
Lymph vessels are primary vessels that allow for the transport of Lymphatic fluid. Though being similar to arteries they do not have high pressure due to the lack of the force exerted by the heart.
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Which of the following substances is NOT a solution? A) humid air B) beer C) oxygen D) steel E) All of the above are solutions_
Substances which is not a solution is : E) All of the above are solutions
A solution is a homogenous mixture of two or more substances. Humid air is a mixture of water vapor and air, but it is not homogenous, so it is not a solution. Beer is a mixture of water, hops, barley, and yeast, but it is not homogenous, so it is not a solution. Oxygen is an element, not a mixture of substances, so it is not a solution. Steel is an alloy, which is a mixture of two or more metals, but it is not homogenous, so it is not a solution.
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The chemical name of Co2(CO3)3 is:a) Cobalt carbonate b)Cobalt (III) carbonate c)Cobalt (Il) carbonate d)Cobalt (III) carbonate (II)
Answer:
Option B is the correct answer
Cobalt (III) carbonate
Explanation:
The chemical name of CO₂(CO₃)₃ is Cobalt (III) carbonate
a mixture of 100 g of k2cr2o7 and 200 g of water is stirred at 60 oc until no more of this salt dissolves. the resulting solution is decanted (poured off) and cooled to 20 oc. what mass of k2cr2o7 crystallizes from the solution during the cooling?
A mixture of 100 g of K2Cr2O7 and 200 g of water is stirred at 60 OC until no more of this salt dissolves. 33% mass of K2Cr2O7 crystallizes from the solution during the cooling.
To solve this problem, you need to use the solubility curve for potassium dichromate (K2Cr2O7) in water. A solubility curve is a graph that shows the relationship between the temperature of a solution and the amount of a substance (in this case, potassium dichromate) that will dissolve in the solution. Since the mixture you have consists of 100 grams of potassium dichromate and 200 milliliters of water, you can use the solubility curve to determine how much potassium dichromate will dissolve in the mixture at 60 degrees Celsius.
At a temperature of 60 degrees Celsius, the solubility of potassium dichromate in water is approximately 150 grams per 100 milliliters of water. Since the mixture you have consists of 100 grams of potassium dichromate and 200 milliliters of water, you can use the solubility curve to determine how much potassium dichromate will dissolve in the mixture.
Since the volume of water in the mixture is 200 milliliters, this means that approximately 67% of the potassium dichromate in the mixture will dissolve at 60 degrees Celsius. The remaining 33% of the potassium dichromate will not dissolve in the mixture and will remain as a solid.
When the mixture is cooled to 20 degrees Celsius, the solubility of potassium dichromate in water decreases. This means that some of the potassium dichromate that was dissolved in the mixture at 60 degrees Celsius will crystallize out of the solution as the temperature decreases.
To determine the mass of potassium dichromate that crystallizes from the solution during the cooling, you can use the following equation:
Mass of potassium dichromate crystallized = (Mass of potassium dichromate in mixture - Mass of potassium dichromate dissolved at 60 degrees Celsius) x (1 - Solubility at 20 degrees Celsius / Solubility at 60 degrees Celsius)
Substituting in the values from the problem, we get:
Mass of potassium dichromate crystallized = (100 grams - (100 grams x 67%)) x (1 - (Solubility at 20 degrees Celsius / 150 grams)
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What does 1:1 dilution mean in chemistry?
Answer:
It means an equal volume of both the solvent & the solute
Explanation:
