The conformation with the axial methyl and chlorine substituents is more stable.
What is chlorine substituents?Chlorine substituents are chemical groups or molecules that are attached to other molecules or substances, typically through a covalent bond.
Since the axial methyl and chlorine substituents are more stable, the compound would spend more than 95% of its time in this conformation. To calculate this, we can use the Boltzmann equation.
ΔG = -RTlnK
Where K is the equilibrium constant.
K = e-ΔG/RT
For a temperature of 25°C, R=8.314 J/K⋅mol.
ΔG = -8.314⋅25⋅lnK
If we assume that K is greater than 95%, then lnK must be a positive number.
lnK = ΔG/8.314⋅25
ΔG = 8.314⋅25⋅ln95
ΔG = 44.2 kJ/mol
Therefore, the compound will spend more than 95% of its time in the more stable conformation if the energy difference between the two conformations is greater than 44.2 kJ/mol.
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To isolate a single variable when rearranging equations, move all other variables to the other side of the equation by using the opposite function on them and remembering to perform that operation on both sides of the equation.
Isolating variables are commonly used when solving equations related to chemical reactions or thermodynamics.
For example, let's say we have the equation for the equilibrium constant of a reaction:
Kc = [C][D] / [A][B]
Where Kc is the equilibrium constant, [C] and [D] are the concentrations of products C and D, and [A] and [B] are the concentrations of reactants A and B.
If we want to isolate the concentration of one of the reactants, say [A], we can use the opposite operation to move it to one side of the equation.
For example, we can multiply both sides of the equation by the denominator, [A][B], to cancel out the denominator on the right side:
Kc * [A][B] = [C][D]
Then we can divide both sides by [C][D]:
[A] = Kc * [B] / [D]
Now [A] is isolated on one side of the equation and can be calculated.
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a student measures the mass of a compound to be 9.01 g and its volume to be 11.0 ml. what is the density in g/ml?
The density is 0.819 g/m if a student measures the mass of a compound to be 9.01 g and its volume to be 11.0 ml.
What does density mean?Density is the number of things—which could be people, animals, plants, or objects—in a certain area. To calculate density, you divide the number of objects by the measurement of the area. The population density of a country is the number of people in that country divided by the area in square kilometers or miles.
What is density with example?Density is the measure of how much “stuff” is in a given amount of space. For example, a block of the heavier element lead (Pb) will be denser than the softer, lighter element gold (Au).
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what acts like fingerprints that identify atoms and molecules
Spectral lines act like fingerprints that identify atoms and molecules.
Spectral lines are unique patterns of light emitted or absorbed by an atom or molecule at specific wavelengths or frequencies. These patterns are caused by the transitions of electrons within an atom or molecule, and are specific to each element or compound.
There are different types of spectroscopy used to study spectral lines, each one specific to a range of frequencies:
-In the visible region of the electromagnetic spectrum, we have the absorption or emission spectra.
-In the infrared region of the electromagnetic spectrum, we have the infrared spectra.
-In the ultraviolet and visible region of the electromagnetic spectrum, we have the ultraviolet-visible spectra.
-In the X-ray region of the electromagnetic spectrum, we have the X-ray spectra.
Each type of spectroscopy provides a unique set of information about the sample being studied, and can be used to identify and quantify specific elements or compounds.
Spectral lines are extremely specific and unique, like fingerprints, and can be used to identify and distinguish one atom or molecule from another.
Choose an implication that is supported by the passage.
According to passage information, which of the following reasons was probably determinative in the selection of Skellig Michael as the site for a monastery?
A.Its proximity to the shrine at Needle's Eye
B.Its isolation from worldly distractions
C.The protection it promised from raiders
D.The opportunities it provided for suffering
According to this paragraph, the monastery was a site because Its isolation from worldly distractions.
What is meant by monastery?
a building or place of abode used by a group of people, notably monks, who live in solitude and observe certain religious vows. the inhabitants of such a place as a group.Numerous religions, including Buddhism, Daoism, Judaism, and Christianity, have monasteries as a component.Lao Zi lived alone and established his own monastery. Hermits, or solitary religious adherents who lived in complete seclusion from everyone else, were the first enthusiasts of monastic life.A monastery was a building or group of buildings where people lived, prayed, and gave their entire lives to God.Monks were the title given to the residents of the monastery. Everything the monks required was provided by the monastery community because it was self-sufficient.To learn more about monastery refer to
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how many liters of carbon dioxide gas are formed at stp when 3.829 x 10^25 representative particles of c8h18 are reacted in an excess of oxygen gas at stp are fully reacted
The carbon dioxide gas that will be formed at STP is , 1.38 liters after the application of Ideal Gas law.
What is Combustion?A combustion reaction is an exothermic chemical process involving two or more substances that typically produces heat, energy, and light (flame). The substance that is burned determines the reaction's byproducts.
The balanced equation for the combustion of octane C₈H₁₈ with oxygen gas (O₂) is:
C₈H₁₈ + 12.5 O₂ → 8CO₂ + 9H₂O To calculate the number of liters of carbon dioxide gas produced at STP, we need to use the Ideal Gas Law, PV = nRT.
Here, we know the following: P = 1 atm (STP) T = 273 K (STP) ,R = 0.0821 Latm/mol K
The number of moles of C₈H₁₈ reacted is (3.829 x 1025 representative particles) / (6.022 x 1023 representative particles/mol) = 6.38 x 10-2 mol
The number of moles of CO₂ produced is 8 mol CO₂ per mol C₈H₁₈ reacted ,so we can find n,(the number of moles of CO₂ produced) :
n = 8 x 6.38 x 10-2 mol = 0.05104 mol
Finally, we can use the Ideal Gas Law to find the volume of CO₂ produced at STP:
V = nRT / P
So, V = 0.05104 mol x 0.0821 Latm/molK x 273 K / 1 atm = 1.38 L
Therefore, 1.38 liters of carbon dioxide gas are formed at STP when 3.829 x 1025 representative particles of C₈H₁₈ are reacted in an excess of oxygen gas at STP are fully reacted.
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what is the total contribution of the three si atoms to the sum of oxidation numbers in k-feldspars?
The sum of oxidation numbers of the three Si atoms in k-feldspars (KAlSi3O8) is +12
What is an oxidation number?The amount of electrons any atom or ion however has gained or lost in comparison to a neutral atom is known as the oxidation number / state of the atom or ion.
k-feldspars, molecular formulae KAlSi3O8
We know that -
Oxidation state of oxygen = -2
Oxidation state of Potassium = +1
Oxidation state of aluminum = +3
8 oxygens, each of them -2, = -16
1 potassium, +1
1 aluminum, +3
1 + 3 - 16 = -12
So the three silicon atoms need to make up +12 for the compound to be neutral.
12 / 3 = +4, so each silicon is +4.
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gaseous argon has a density of 1.40 g/l at standard conditions. how many argon atoms are in 1.00 l of argon gas at standard conditions?
Gaseous argon, a non-reactive and chemically inert element, has a density of 1.40 grams per liter at standard conditions. This density value is important in determining the number of argon atoms present in a specific volume of the gas. To calculate the number of argon atoms in one liter of gaseous argon at standard conditions, one must first understand the concept of molar mass and Avogadro's number.
The molar mass of a substance is the mass of one mole of that substance. One mole of a substance is defined as the amount of that substance that contains the same number of entities as there are atoms in 12 grams of carbon-12. The molar mass of argon is 39.948 grams per mole.
Avogadro's number, often denoted as Nₐ, is the number of atoms or molecules present in one mole of a substance. It is approximately 6.022 x 10²³ atoms or molecules per mole.
To determine the number of argon atoms in one liter of gaseous argon at standard conditions, we can use the following equation:
(density of argon) x (Avogadro's number) = (moles of argon) x (molar mass of argon)
By substituting the known values into the equation, we get:
1.40 g/L x 6.022 x 10²³ atoms/mol = 0.0841 moles x 39.948 g/mol
And therefore, the number of argon atoms present in 1 liter of gaseous argon at standard conditions is:
0.0841 moles x 6.022 x 10²³ atoms/mol = 5.08 x 10²² atoms
Therefore, there are approximately 5.08 x 10²² argon atoms present in one liter of gaseous argon at standard conditions.
It's worth to mention, that this calculation is based on the assumption that the sample is at standard conditions of temperature and pressure. Also, this is a theoretical calculation based on the assumption that the sample is pure argon. In reality, it may have impurities.
how to do you calculate covalent bonding graphs and where do you place the atoms?
Answer:
The number of bonds for neutral atom is equal to the number of electrons in the full valence shell (2 or 8 electrons) minus the number of valence electrons.
Explanation:
This method works because each covalent bond that an atom forms adds another electron to an atoms valence shell without changing its charge.
which statement about carbohydrates is false? group of answer choices sucrose dissolves easily in water. cellulose is a polysaccharide. starch is made up only of glucose monomers. sucrose is made from two glucose molecules.
Sucrose is made from two glucose molecules.
Are carbohydrates water soluble?Small, polar molecules known as simple carbohydrates have several -OH functional groups, that makes these hydrophobic (they dissolve well in water).
Are carbs found in sucrose and starch?Because they are all types of carbohydrates, sucrose, glucose, and starch are related.Carbohydrates, one of the basic macronutrients in meals along with fat and protein give your body energy.
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How many moles of silicon (Si) atoms are equivalent to 65.8g Si?
A) 0.427 g
B) 2.34 mol
C) 4.70 g
D) 1,850 mol
The number of moles of silicon atoms equivalent to 65.8 g Si is 65.8 g/28.09 g/mol = 2.34 mol.
What is atoms?Atoms are the basic building blocks of all matter. They are the smallest particles of an element that still retain the properties of that element. Atoms are composed of protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The nucleus, which is composed of protons and neutrons, is located at the center of the atom and is held together by strong nuclear forces.
To calculate the number of moles of silicon (Si) atoms,
use the formula n = m/M, where n is the number of moles,
m is the mass of the substance, and M is the molar mass of the substance. The molar mass of silicon is 28.09 g/mol.
Therefore, the number of moles of silicon atoms equivalent to 65.8 g Si is 65.8 g/28.09 g/mol = 2.34 mol.
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What is the electron configuration of Cd4+?Is it [Kr] 4f145d8 ?
the Cd4electron +'s arrangement Could it be [Kr] 4f145d8 7.3439, Sb. Antimony, and 51. (Kr)4d10 5s2 5p3.
What is the right electronic configuration?(c)1s22s22p63s23p64s23d104p3 ( c ) The proper method to write an electronic configuration is 2 s 2 1 s 2 2 pp 6 3 s 2 4 p 6 4 s 2 2 d 10 4 p 3. To describe the electronic configuration, it adheres to Aufbau, Pauli, and Hund's rules.
What element's electrical configuration is Vr 4d10 5s2 5p5?On the periodic chart, row 5, column 7, is where you can find a chemical element that was identified in 1811. It has a proton count of 53 and an atomic weight of 126.9. Iodine has 53 electrons, which are arranged in the following configuration: 1s2 2s2.
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which sentence below best describes the bonds in h-o-o-h? group of answer choices the o-h bonds are polar and the o-o bond is non-polar. all bonds are non-polar. the o-o bond is polar and the o-h bonds are non-polar. all bonds are polar
Their bonds are polar because every oxygen has a delta - and every carbon has a delta +. an element with the chemical symbol C and indeed the isotope 6 Tetravalent, nonmetallic, and it.
What does a carbon serve?Metals are melted down using coke & charcoal, both of which are impure forms of carbon. It is especially important there in steel and aluminium industries. Graphite can be found in electric motor brushes, furnace linings, and pencil leads. Activated charcoal is used for filtering and purification.
what is Carbon's level of risk ?poisonous nature of carbon. Thousands of fatalities occur each year in North America as a result of the odourless gas carbon monoxide. Inhaling carbon monoxide is exceedingly dangerous. It is the main cause of poisoning deaths in the country.
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a solution is prepared by dissolving 7.00 grams of nh4cl in enough water to make 500. ml of solution. what is the molarity of this solution?
When a solution is prepared by dissolving 7.00 grams of NH4Cl in enough water to make 500. ml of solution then its molarity is 2 mol/L
Moles of NH4Cl = given mass / molar mass
moles = [tex]\frac{7 g}{53,5 g/mol}[/tex] = 0.13 moles of NH4Cl
500 ml = 500 g
Molarity = moles of solute / mass of solvent in kg
Molarity = [tex]\frac{0.1}{500} . 1000[/tex]
Molarity = 2 mol/L
A mole is a unit of measurement for a chemical substance, and it is from this unit that the word "molarity" is derived. The method of figuring out how much of a substance a specific chemical solution contains is known as molecularity, also known as the molar concentration of a solution. According to mathematics, molarity is: Molarity is the sum of the solute's moles. litres of the solution. Since the volume of the solution will be measured in litres and the number of moles of solute is measured in mol. So, mol L – 1 is the unit of molarity.
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For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH.
A. 0.16 M NaOH
B. 1.7×10−3 M Ca(OH)2
C. 5.0×10−4 M Sr(OH)2
D. 8.8×10−5 M KOH
pH calculations of strong base solutions are pretty direct. It all depends on how many OH- ions are dissociated and the concentration of the solution.
How do you determine the pH of powerful acids and bases?Calculating the pH of Strong Hcl and Base Solutions, Section 7.14 1 List a few potent acids and bases together with their names and formulae. 2 Describe the pH scale and convert pH to hydronium ion concentration. 3 Analyze the pH and pOH in powerful acid or base solutions.
[OH-] = 2 x 1.13x10^-2 M = 2.26x10^-2
pOH = -log[OH-] = 1.65
pH = 14 - 1.65 = 12.35
[H3O+] = 10^(-12.35) = 4.47x10^-13
NaOH – is it an Arrhenius base?As an illustration, the Arrhenius base NaOH generates OH ions.
Ca(OH)2:
[OH-] = 2 x 5.3x10^-4 M = 1.06x10^-3 M
pOH = -log[OH-] = 2.97
pH = 14 - 2.97 = 11.03
[H3O+] = 10^(-11.03) = 9.33x10^-12
[OH-] = 1.8x10^-4 M
pOH = -log[OH-] = 3.74
pH = 14 - 3.74 = 10.26
[H3O+] = 10^(-10.26) = 5.50x10^-11
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According to the bohr model of the atom, the single electron of a hydrogen atom circles the nucleus: _________
According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus in a specific, defined orbit or energy level.
The electron moves around the nucleus in a circular path, called an orbit, at a specific distance from the nucleus, this distance is called the radius. The energy of an electron in an orbit is related to its distance from the nucleus, the closer the electron is to the nucleus, the lower its energy, and the farther away it is, the higher its energy.
The Bohr model is an early model of the hydrogen atom, it explains the hydrogen spectrum and the stability of the atom but it's not accurate for explaining the behavior of atoms with more than one electron. It's been superseded by the more accurate and general quantum mechanical models like Schrodinger equation.
identify the section in which each type of information can be found on a safety data sheet.
Guidelines for accidental contact is the section in which each type of information can be found on a safety data sheet.
The safety data sheet (SDS) contains details about each chemical's characteristics, potential physical, mental, and environmental health risks, counter measures, and safety instructions for handling, storing, and transporting the chemical.
Guidelines for accidental contact: First aid measures; chemical name; identification of potential hazards; compatibility; handling; PPE; and exposure controls. Hazards and suggestions for chemicals are:
Chemical hazards are various chemical chemicals that can be harmful to human health. The First-Aid Measures are a set of suggestions on how to lessen the consequences brought on by unintentional exposure to a certain chemical threat. Personal protection equipment (PPE) is a category of specially made equipment that shields an employer from workplace safety threats.
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The complete question is
Identify the section in which each type of information can be found on a Safety Data Sheet.
recommendations in case of accidental contact with the chemical Choose...
chemical name and formula Choose...
possible dangers and health effects Choose...
incompatibility or reactivity with other chemicals Choose...
recommended personal protective equipment (PPE) Choose...
predict and explain the types of intermolecular forces that would occur between paper and water. how do these interactions account for the hydrophilic nature of the water?
Water propensity move capillary action against gravity by strong intermolecular force of hydrogen bonds in paper&water, which are made up of the OH from paper chromatography and the H from the water.
What are the four chromatography types?
To that goal, numerous chromatographic techniques have been created. A few of these are affinity chromatography, slender chromatography (TLC), column chromatography, paper chromatography, chromatography, anion - exchange chromatography, and gel permeation and high-pressure liquid chromatography.
What is the purpose of chromatography?
Chromatography can be employed to read the contents of a mixture by feeding its outputs into a detector. Additionally, it can be employed as a purification method to separate a mixture's constituent parts for use in other operations or studies.
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what are the two major rules associated with polarity? (i.e. how does one determine if a molecule is polar or nonpolar?)
If all of the bonds between the many atoms surrounding the center atom are polar molecules the molecule will always be polar. 2. Non-polar molecules are always made up of the same atoms surrounding a core atom.
What are the two prerequisites for a molecule to qualify as a polar covalent molecule?
A molecule must have a net resultant dipole moment and individual bond moments that do not cancel one another in order to be considered polar. The main distinction between molecules and bonds is that molecules come together as a result of the formation of chemical bonds between two or more atoms.
How can you tell if a bond is polar?
Calculating the size of the charge gap in a bond to determine its ionic naturethat is, the magnitude of the charge separation in a polar covalent bond—is to calculate the difference in electronegativity between the two atoms
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15.90g of sodium chloride solution was made to react with 12.10g of lead
trioxonitrate (V) to produce white precipitate of lead chloride solution and
8.40g of sodium trioxonitrate (V). Determine the mass of the white
precipitate of lead chloride and show that this reaction can be used to verify
the law of conservation of matter.
The two main postulates that was given by Antoine Lavoisier are, oxygen play an important role in combustion and the other is mass of the reactant and product is conserved. Therefore the mass of PbCl[tex]_2[/tex] is 19.6g.
What is law of conservation of mass?According to Law of conservation of mass, mass can neither be created nor be destroyed. Mass can only be transformed from one form to another. The law of conservation of mass was given by Antoine Lavoisier. Every reaction in nature follow the law given by Antoine Lavoisier that is mass is always conserved.
NaCl + Pb (NO[tex]_3[/tex]) [tex]_2[/tex](aq) → PbCl[tex]_2[/tex] (s) ↓ + 2 NaNO[tex]_3[/tex] (aq)
Mass of NaCl =15.90 Grams
Mass of Pb (NO[tex]_3[/tex]) [tex]_2[/tex]=12.10grams
According to law of conservation f mass
mass of reactant = mass of product
Substituting the values we get
15.90g + 12.10g = mass of PbCl[tex]_2[/tex]+ 8.40g
mass of PbCl[tex]_2[/tex] =19.6g
Therefore the mass of PbCl[tex]_2[/tex] is 19.6g.
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A gas with a volume of 4.00l at a pressure of 205 kpa is allowed to expand to a volume of 12.0l. what is the pressure of the container if the temperature remains constant?
A gas with a volume of 4.00l at a pressure of 205 kpa is allowed to expand to a volume of 12.0 l. The pressure of the container is 68.3 kpa.
The Boyles law is given as :
P1 V1 = P2 V2
The Pressure P1 = 205 kpa
The Volume V1 = 4 L
The Pressure P2 = ?
The Volume V2 = 12 L
By using the above formula , we get
P1 V1 = P2 V2
205 × 4 = P2 × 12
P2 = 820 / 12
P2 = 68.3 kpa.
Thus, the pressure of the container is 68.3 kpa.
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assuming no other changes, what would be the effect on the rate of the sn2 reaction shown if the concentrations of 2-bromopentane is doubled and the concentration of ch3ch2cooh is halved?
The concentrations of 2-bromopentane is doubled and the concentration of ch3ch2cooh is halved the rate would double .
What is in a concentration?The concentration of a substance is the quantity of solute present in a given quantity of solution. Concentrations are usually expressed in terms of molarity, defined as the number of moles of solute in 1 L of solution.
What is concentration in solution?A solution concentration is a measure of the quantity of solute that has been dissolved in a given quantity of solvent or solution. One that contains a relatively high volume of dissolved solute is a concentrated solution. That that contains a relatively minimal volume of dissolved solute is a dilute solution.
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suppose you were teaching a science class to middle school students. because you want to show them an impressive chemical reaction, you decide to dissolve zinc in hydrochloric acid. you add more acid than usual and throw in pieces of zinc. what factor is not going to impact the reaction rate?
You toss in some zinc and add additional acid than usual. The volume of hydrochloric acid used won't affect the rate of the reaction.
Describe acid.a substance that reacts with certain metals to produce salts and releases hydrogen into water. Acids give certain dyes a reddish tint and have a sour flavor. Gastric acid is one of the body's natural acids, and it can aid in the proper function of organs. Hydrogen peroxide is a kind of acid.
What three sorts of acids are there?Organic molecules, fatty acid metabolism, sodium ascorbate, and hydrochloric seem to be the acids that are most crucial to a female organism. The first is called binary acid, followed by oxyacid and carboxylic acid. Binary acids are represented by the letter "H-A," which stands for an ester linkages to a non - metals atom.
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an unknown compound, x, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. when 75 ml of 0.1 m naoh is added to 100 ml of a 0.1 m solution of x at ph 2.0, the ph increases to 6.72. calculate the pka of the second ionizable group of x.
It is believed that the compound x has a carboxyl group. Using the X Henderson Hassel Balch equation, the second group's pKa is 7.3.
Compound? What do you mean?A matter with a consistent and clearly defined composition is said to be chemical. An electron or a compound can both be classified as a dangerous chemical. Covalent bonds develop as a byproduct of atoms sharing or trading electrons.
pH = pKa + log10([A^-] / [HA])
moles of carbonyl groups
= 0.1 / 100 = 0.01 moles
75 ml = 0.0075 moles.
25 ml = 0.0025 moles.
6.72 = pKa - log 4
pKa = 6.72 + log 4
pKa = 6.72 + 0.6
pKa = 7.3
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how many moles of atoms are in a pure gold ring (24k) that has a mass of 6.62 g?
Moles of atoms in a pure gold ring (24k) that has a mass of 6.62 g is 0.0336 moles.
What is moles of atoms?The mole is the unit of amount of substance in the International System of Units. The quantity amount of substance is measure of how many elementary entities of a given substance are in a sample. The mole is defined as having exactly 6.02214076×10²³ elementary entities. The number 6.022 × 10²³ is Avogadro's number or Avogadro's constant.
In the given problem, it is given mass of 6.62 g
atomic mass of gold = 197
So, moles of atoms= 6.62/197
= 0.0336 moles.
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calculate the percent composition of a 35.4 g piece of silver (Ag) that combines completely with 22.3 g of CO to form AgCL
Explanation:
To calculate the percent composition of a 35.4 g piece of silver (Ag) that combines completely with 22.3 g of CO to form AgCL, we need to know the molar mass of Ag and CO.
Ag = 107.87 g/mol
CO = 28.01 g/mol
The balanced equation for the reaction is:
Ag + CO → AgCL
So, we have 35.4 g of Ag and 22.3 g of CO reacting to form AgCL.
First, we need to calculate the moles of Ag and CO.
moles of Ag = 35.4 g / 107.87 g/mol = 0.327 moles
moles of CO = 22.3 g / 28.01 g/mol = 0.796 moles
Now, we can use the moles of each component to find the percent composition of Ag and CO in AgCL.
% of Ag = (moles of Ag / (moles of Ag + moles of CO)) x 100% = (0.327 / (0.327 + 0.796)) x 100% = 29.3%
% of CO = (moles of CO / (moles of Ag + moles of CO)) x 100% = (0.796 / (0.327 + 0.796)) x 100% = 70.7%
Therefore, the percent composition of Ag in AgCL is 29.3% and the percent composition of CO in AgCL is 70.7%.
a solution contains 20 g of solute dissolved in 0.5 l of water. what is the percentage of this solution
The mass percent of a solution contains 20g of solute dissolved in 0.5 L of water is 4%.
The term Mass percent of a solution is defined as the ratio of the mass of solute that is present in a solution relative to the volume of the solution. It is the one way of representing the concentration of an element in a compound or a component in a mixture. To express the concentration of a solution when the mass of a solute the mass percent is used. This type of concentration is expressed as a percentage. The indicated proportion must be multiplied by 100 to get the mass percent.
Mass by Volume percentage = mass of solute/volume of solution) *100
= (20 g/500 mL) * 100
= 4%
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The chemical equation above represents the equilibrium that exists in a saturated solution of Ag2CO3. If S represents the molar solubility of Ag2CO3, which of the following mathematical expressions shows how to calculate S based on Ksp?
Ag2CO3(s)⇄2Ag+(aq)+CO32−(aq)
S = √[Ksp/(2)^2]: The mathematical expression for calculating S is derived from the equilibrium expression for the reaction: [Ag+]2[CO3²⁻] = Ksp.
What is equilibrium?Equilibrium is a state of balance where opposing forces are equal and in balance with each other, resulting in no net change. It occurs when an object's total internal and external forces cancel each other out. Equilibrium is a critical conecpt in physics, economics, and other sciences. In physics, equilibrium can refer to either static or dynamic balance, depending on the context. Static equilibrium describes when an object does not move or change, while dynamic equilibrium describes when an object's velocity and acceleration is constant. In economics, equilibrium is the balance of supply and demand in a market. In this context, equilibrium is the point at which the amount of goods supplied is equal to the amount of goods demanded.
The expression for S is derived from rearranging the equation to solve for [Ag+], then taking the square root of the result. The "2" in the denominator represents the stoichiometric coefficient of Ag+ in the equilibrium expression.
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Dinitrogen pentoxide decomposes to form nitrogen dioxide oxygen, following the equation 2n2o5 >4no2 +o2. at a certain timepoint, n2o5 is being consumed at a rate of 0.1 m/s. what's the rate production of no2 and )2 at the same timepoint?
Answer:
Rate of production of NO₂ = 0.2 M/s
Rate of production of O₂ = 0.05 M/s
For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. compound Does solubility change with highest solubility PH? pH = 9 Caco yes pH = 6 Опо Ba(OH)2 yes no PbCl2 yes Спо
The highest solubility at a pH less than 7.
What is aqueous solution?An aqueous solution is one in which water serves as the solvent. Chemical equations typically illustrate it by adding (aq) to the appropriate chemical formula. For instance, Na+(aq) + Cl would be used to represent a solution of table salt, or sodium chloride (NaCl), in water (aq).
For Caco (Calcium carbonate), solubility does change with pH. Calcium carbonate is a basic salt and is more soluble in acidic solutions. Therefore, you would expect the highest solubility at a pH of around 9, where the carbonate ion (CO32-) is the least likely to be protonated.
For Ba(OH)2 (Barium hydroxide), solubility does not change with pH. Barium hydroxide is a strong base and is highly soluble in water regardless of the pH. Therefore, there is no specific pH at which you would expect the highest solubility.
For PbCl2 (Lead chloride), solubility does change with pH. Lead chloride is a salt and is more soluble in acidic solutions than in neutral or basic solutions. Therefore, you would expect the highest solubility at a pH less than 7.
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what factors govern the position of an ir absorption peak? effect of a magnetic field on nucleus spin masses of the atoms involved in the bond the type of vibration being observed strength of the bond
The factors that govern the position of an IR peak are: strength of the bond ; masses of the atoms involved in the bond and type of vibration being observed.
What do you understand by term Infrared radiation?The study of chemicals makes use of infrared spectroscopy.
The electromagnetic spectrum includes infrared radiation. It has a significant role to play in compound analysis. Infrared spectroscopy is frequently used in organic chemistry to pinpoint a molecule's interactions.
An IR peak's location is affected by a number of variables, including:
the bond's strength, the atoms' weights, and the type of vibrations being noticed
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