09/17/21

The temperature at which the following process reaches equilibrium at 1.0 atm is the normal boiling point of hydrogen peroxide. (R = 8.314 J/K • mol)
 Substance: H2O2(l) H2O2(g) ΔH°f (kJ/mol): –187.7 –136.3 ΔG°f (kJ/mol): –120.4 –105.6 S° (J/K • mol):  109.6  232.7 The temperature at which the following process reaches... more
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09/17/21

When 0.16 mol of O2 gas and excess graphite were placed in a 2.00-L container and come to equilibrium, the concentration of CO gas was 0.034 M
When 0.16 mol of O2 gas and excess graphite were placed in a 2.00-L container and come to equilibrium, the concentration of CO gas was 0.034 M. What is the equilibrium constant, Kc, for this... more
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09/16/21

write the rate law of the rate determining step, and then use the equilibrium condition to eliminate any intermediates.
Given a mechanism consisting of the following two elementary steps:A (g)   2 B (g) fast equilibriumB (g) ----> (K2) 2 C(g) slow stepGive the orders of the following substances which appear in... more
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09/16/21

Combine these two equilibrium reactions, into a single reaction equation that shows the overall equilibrium.
A (g) + B (g)  C(g)      fast equilibrium B (g) + C (g)  D(g)      fast equilibriumWhich of the following expressions is the correct equilibrium-constant expression for the overall equilibrium?A.... more
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09/16/21

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium shown?
equilibrium reaction: 2 A (g)  B(g)A. [A][B] B. C. D. E. [B]2[A]
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09/16/21

Please calculate the atom economy and the estimated e-factor (assuming 100% yield))
Please calculate the atom economy and the estimated e-factor (assuming 100% yield))Reaction: Fe2+(aq) + H2CC204(aq) + 2H20(1) → FEC204(s) + 2 H30+(aq) 2 FEC204(s) + H2O2(aq) + 2 H+(aq) + C2042-(aq)... more
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09/16/21

Chemistry - Naming Ionic Compounds
What is the chemical formula for the compound formed between iron(III) and the bromate ion?What is the chemical formula for the compound formed between iron(III) and the sulfate ion?
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09/16/21

Starting with 100 mL of acetone calculate the theoretical yield of product and grams ( density of acetone = .791g/mol ; molar mass of acetone =58.09 g of moles molar mass of product is 98.16g/mol
C3H6O- —catalytic NaOH—>C6H10O + H2OStarting with 100 mL of acetone calculate the theoretical yield of product and grams ( density of acetone = .791g/mol ; molar mass of acetone =58.09 g of... more
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09/14/21

What is ΔG°rxn in kJ/mol for the following reaction at 587.5 Kelvin? Please report 2 decimal places, without units. 2NO(g) + Cl2(g) → 2NOCl(g
Substance: NO(g) Cl2(g) NOCl(g) ​ ​ ​ ​ ΔH°f (kJ/mol) at 298 K 90.29 0 51.71 ΔG°f (kJ/mol) at 298 K 86.60 0 66.07 S°(J/K • mol) at 298 K 210.65 223.0 261.60  2NO(g) + Cl2(g) →... more
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09/14/21

calculate how many grams of Cr (OH) 3 are formed when 19 kg of KOH reacts with CrCl3
calculate how many grams of Cr (OH) 3 are formed when 19 kg of KOH reacts with CrCl3
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09/14/21

Calculate the value of K under the reaction conditions.
For the reaction in a sealed container at a constant temperature,2NO(g)+Br2​(g) <=> 2NOBr(g)the initial concentrations are 4.25 M NO, 8.10 M Br2, and no NOBr. At equilibrium, [NOBr]... more
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09/14/21

For the reaction below, Kc = 4.60 × 10⁻⁶. What is the equilibrium concentration of B if the reaction begins with 0.800 M A? A (g) ⇌ 3 B (g)
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09/14/21

A solution is made initially with 0.550 M HIO₃ (Kc = 0.170). Once the equilibrium below is established, what is the equilibrium concentration of H⁺ ions? HIO₃ (aq) ⇌ H+ (aq) + IO₃⁻ (aq)
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09/14/21

Calculate the value of the equilibrium constant for the following reaction.
Given the following reactions:3C <=> D KC​=5.52×10−4D <=> 3A+3B KC​=6.73×10−2 Calculate the value of the equilibrium constant for the following reaction.A+B <=> C
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09/14/21

Determine the mass of oxygen used for the complete combustion of fatty acid. And Balance the above chemical equation.
Fatty acids are one of the basic building blocks of humans. They have a general formula of CxHyOz. A technician wants to determine the type of pure fatty acid isolated from a metabolite mixture. As... more
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09/14/21

In a decompostion reaction, the reaction decays 21.2 times more rapidly at 22°C then at 4 °C. What is the overall activation energy (kJ/mol) of the process ?
Enter your answer as an integer. 
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09/13/21

Find the oxidation of glucose to water and carbon dioxide
1.     An important metabolic process of the body is the oxidation of glucose to water and carbon dioxide. The reaction is à C6H12O6+ 602‑+6CO2 + 6H20a.   What mass of water in grams is produced... more
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09/13/21

For which of the following transitions does the light emitted have the longest wavelength?
For which of the following transitions does the light emitted have the longest wavelength?
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09/13/21

What is the relationship between pressure and volume? Is the relationship positive, negative, or neutral?
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09/13/21

Use the Nernst Equation to calculate the cell potentials of the following cells at 298 K
Use the Nernst Equation to calculate the cell potentials of the following cells at 298 K
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09/13/21

chemistry conversions and denisty
(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a gold atom is 144 pm. What is this value in meters and in centimeters?  m   cm(b) The mass of a... more
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09/12/21

Chemistry Problem
Determine the pH of a 0.25 M solution of KOBr
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09/12/21

A 14.549 g sample of CaCl2 was added to 12.344 g of K2CO3 and mixed in water. A 3.522 g yield of CaCO3 was obtained.
What is the limiting reagent?Calculate the percent yield of CaCO3
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09/12/21

What is the empirical formula of a compound composed of 3.25% hydrogen ( H ), 19.36% carbon ( C ), and 77.39% oxygen ( O ) by mass?
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09/12/21

Stoichiometry chem question
Glucose, C6H12O6  is used as an energy source by the human body. The overall reaction in the body is described by the equationC6H12+6O2-----> 6CO2+6H2OCalculate the number of grams of oxygen... more
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