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# Chemical Equilibrium

### Calculating Partial Pressures in Equilibrium

If I have the equilibrium constant for a reaction, how do I figure out the partial pressures of the components? Help! equilibrium constant for COCL2 is 4.63 x e-3 at 527 degree centrigrade COCL2(g)=CO(g) + CL2(g) at 0.760 atm how do I find the partial pressures in atm?

### Equilibrium constants for reactions

Chemistry is hard for me. Could you show me how to set up this problem? Thank you. At 700 degree C calculate the equilibrium for the reaction 2 H2(g) + S2(g)= 2 H2S(g) 2.50 moles of H2 1.35 x e-5 moles S2 8.70 moles of H2S in a 12.0 liter container

### Calculating Equilibrium Constant: Example Problem

Can you show me how to set up the equation? What is the equilibrium constant if the equilibrium concentrations at 74 degrees centigrade to form carbonyl chloride are [CO]=1.2 x e-2 M [Cl2]=0.054 M [COCl2]= 0.14M CO(g) + Cl2(g)= COCl2(g)

### Equilibrium for Nitrozil Bromide Decomposition

Nitrozil bromide decomposes according to the following equation: 2NOBr(g) <--> 2NO(g)+ Br2(g) Kc=.600 At equilibrium 4.68 mol NOBr is present in a 1.00L flask. a. How much NO(g) and Br2 are present at equilibrium if initially only NOBr(g) was introduced? b. What was the initial concentration of NOBr in the flas

### Equilibrium Pressures of Gas

At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g)<---> SO3(g) + NO(g) If all four gases had initial concentrations of 0.710 M, calculate the equilibrium concentrations of the gases. [SO3] M [NO] M [SO2] M [NO2] M

### Equilibrium Concentration: Calculating Ke

The solution calculates Ke for the following..the equilibrium concentration is below each. a)4 NH3 (g) + 3 O2 (g) ↔ 2 N2 (g) + 6 H2O g) + heat [0.010 [0.10] [0.0794] [0.10] b)N2 (g) + 3 H2 (g) + heat ↔ 2 NH3 (g) = (34...i think) [0.103] [0.240

### Chemical Kinetics, Chemical Equilibrium & Acids and Bases

1. The following data were collected for the rate of disappearance of NO in the reaction 2NO(g)+O2(g)-----> 2NO2(g) Experiment [NO](M) [O2](M) Initial Rate(M/s) 1 0.0126 0.0125 1.41 x 10^-2 2 0.0252 0.0250 1.13 x 10^-1 3 0.0252 0.0125 5.64 x 10^-2 a

### Chemical Equilibrium Constant

At 700 K the equilibrium constant for the reaction is CCl4 (g) <--> C (s) + 2 Cl2 (g) is Kp = 0.76. A flask is charged with 2.00 atm of CCl4, which then reaches equilibrium at 700 K. a) What fraction of CCl4 is converted into C and Cl2? b) What are the partial pressures of CCl4 and Cl2 at equilibrium?

### Chemical Equilibrium Equations for Kc

Hey there. I'm having problems with this question. Consider the following equilibrium, for which Kp = 0.0752 at 480 *C (degrees Celsius): 2 Cl2 (g) + 2 H2O (g) <--> 4 HCl (g) + 02 (g) a) What is the value of Kp for the reaction of 4 HCl (g) + 02 (g) <--> 2 Cl2 (g) + 2 H2O (g)? b) What is the value of Kp for the reac

### Equilibrium Constants and Precipitation

108. Consider a solution that is .022M in Fe2+ and .014M in Mg2+ a. if potassium carbonate is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? What minimum concentration of K2CO3 is required to cause the precipitation of the cation that precipita

### Chemical reaction in dynamic equilibrium

Can you provide an example of a chemical reaction in dynamic equilibrium. What factors affect the equilibrium of the reaction provided. Why is it important to study chemical equilibrium? In what industries might such knowledge be particularly useful?

### Moles Reaction Question

Consider this reaction: 2HI <--> H2 + I2 One mole of hydrogen iodide was placed in a reaction vessel and allowed to come to equilibirum. It was found that 0.2 mole of hydrogen iodide was left in the equilibrium mixture. Calculate Kc. 2HI <--> H2 + I2 Initial no. moles 1 <--> 0 0 Equil

### Solubility and Ksp

Hi: We are given the following: zinc sulfate (solubility given as 96.5 g/100 ml's) zinc hydroxide ---- given Ksp = 2.1 x 10^-16 zinc sulfide ---- given Ksp = 1.1 x 10^-21 We are asked to calculate the Ksp for zinc sulfate and then asked to convert the Ksp's for zinc hydroxide and zinc sulfide into grams/100 ml uni

### Catalysts and their Effect on Equilibrium

Describe why addition of a catalyst does not affect the equilibrium constant for a reaction. Response needs to be in a 200-300 word essay form.

### Solubility of Silver Chloride

The dissociation of solid silver chloride in water to produce silver ions and chloride ions has an equilibrium constant of 1.8 x10-18. Based on the magnitude of the equilibrium constant, is silver chloride very soluble in water? Explain your answer. Response needs to be in a 200-300 word essay response.

### Equilibrium Constant and LeChatelier's Principle

1, Calculate Ke for the following (equilibrium concentrations given below substances) a) PCl5 (g) + heat &#8596; PCl3 (g) + Cl2 (g) [0.105] [0.219] [0.219] b) 2 SO2 (g) + O2 (g) &#8596; 2 SO3 (g) + heat [0.0500] [0.0500] 0.103] c) CO2 (g) +

### Solubility Product, Formation and Equilibrium Constant

Consider the reaction by which silver chloride dissolves in ammonia: AgCl(s) + 2NH3 --> Ag(NH3)2^+(aq) + Cl^-(aq) (a) Taking Ksp AgCl = 1.8*10^-10 and Kf Ag(NH3)2^+ =1.7*10^7 , calculate K for this reaction.

### Determining Equilibrium and Partial Pressure: Example Problem

Kp = 7.69 at 830C for 2SO3 = 2SO2 + O2. If a vessel at this temperature initially contained pure sulfur dioxide and if the partial pressure of sulfur trioxide = 0.100 atm, what is the partial products in the flask at equilibrium.

### Calculating Keq and Equilibrium Partial Pressure

A mixture of 0.20 mol of CO2, 0.10 mol of H2, AND 0.16 mol of H20 is placed in a 2.0L reaction vessel. The following equilibrium is established at 500 K: CO2 + H2 = CO + H2O At equilibrium P of H2O is 3.51 atm. a) Calculate partial pressure for CO2, H2 and CO b) Calculate equilibrium constant for this reaction.

### Determine overall Keq, given K1 and K2

Given the following information: H2S (aq) <-> H+ (aq) + HS- (aq) K= 8.9 x 10^-8 H+ (aq) + S2- (aq) <-> HS- (aq) K= 8.3 x 10^12 determine the equilibrium constant for the reaction: H2S (aq) <-> 2 H+ (aq) + S2- (aq)

### Chromate Reduction

The equation is: 2CrO4(2-) (yellow) + 2H3O(+) = Cr2O7(2-) (orange) + 3H2O when adding HCl to the mixure - the color will become darker - chromate ions will react w/ the hydronium ion to form the orange color Now add salt to the above mixture - what will the color be (the mixture with the HCl) and explain your answer using L

### Equilibrium Constants and LeChatelier's Principle

1. For a certain chemical reaction, &#61508;H&#61616;= -156 kJ. Assuming the reaction is at equilibrium, classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction. a. a decrease in temperature R L no shift b. an increase in tempera

### Finding Equilibrium Constant and Delta G

Part 1: Ammonia can be produced by the reaction of hydrogen gas and nitrogen gas, as shown below: N2(g) + 3H2(g) &#8594; 2NH3(g) Given that the standard free energy of formation (&#8710;Gof) of NH3 (g) is -111 kJ/mol at 335 K, calculate the equilibrium constant, K, at this temperature. To express an answer in exponential

### LeChatelier's Principle, Equilbrium and Combined Gas Law

Calculate Keq for the following (equilibrium concentrations given below substances) a) 2 O3 (g) &#8596; 3 O2 (g) + heat [6.0 x 10-1] [0.21] b) 2 CO2 (g) + heat &#8596; 2 CO (g) + O2 (g) [0.103] [0.024] [1.18 x 10-2] c) NO2 (g) + O2 (g) +

### Equilibrium of Liquid and Boiling Point ...

Answer and explain 1)As the attractive forces between the molecules of a liquid increase, its equilibrium vapor pressure? A)increases B)decreases c)Remains the same 2)At which external pressure will water boil at the highest temp? A) 0.5 B) 1.0 C) 1.5 D) 2.0

### pressure in the vessel at equilibrium

Question 13 Phosgene (COCl2) is an extremely poisonous gas that was used extensively in World War I as a chemical warfare agent. At 300oC, phosgene decomposes to carbon monoxide and chlorine with a Kp = 6.8 x 10-2. Calculate the pressure in the vessel at equilibrium after placing 5.00 grams of pure phosgene in a 1.00 litre reac

### Establishing Equilibrium

At a very high temperature, Kc = 1.0 x 10-13 for the following reaction: 2 HF(g) ---> H2(g) + F2(g) At a certain time, the following concentrations were detected. Is the system at equilibrium? If not, what must occur for equilibrium to be established? [HF] = 0.300 M, [H2] = 1.00 x 10-4 M, and [F2] = 4.00 x 10-5 M. a.

### Equilibrium, Kc and Reaction Concentrations

Question 14 The equilibrium constant (Kc) for the gas phase reaction 2 NH3 --> N2 + 3 H2 is 3.0 x 10-3 at some temperature. The reaction is started by placing a 0.040-mol sample of ammonia in an empty one-liter flask. When equilibrium is established how much N2 is present? a.) 0.010 mol b.) 0.013 mol c.) 0.016 mol

### Will a precipitate form when 250 ml of 0.33 M Na2CrO4 are added to 250 ml 0.12 M AgNO3 ?

Will a precipitate form when 250 ml of 0.33 M Na2CrO4 are added to 250 ml 0.12 M AgNO3 ? (Ksp Ag2CrO4= 1.1 e-12) What is the concentration of the silver ion remaining in solution?

### equilibrium concentrations

If 2.50 gm of CuSO4 is dissolved in 9.0 X 10 to the 2nd mlof 0.30 M NH3, what are the concentrations of CU+2 Cu(NH3)4 NH3 at equilibrium?