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# Chemical Equilibrium

### Solving Equilibrium

Question: 4HCl + O2 > 2Cl2 + 2H2O HCl is at 2.30 atm, O2 is at 1.00 atm and they both react at 750 K. Equilibrium pressure of Cl2 is .93 atm. How do you go about finding the Kp at 750 K?

### Given two isomers (anomers) of a sugar with a specific rotational character, knowing the specific rotatoin of the equilibrium mixture, what are the percentages of each in the mix?

Q1. à¿-D-Galactopyranose has [à¿]D = +150.7o, and à¿-D-galactopyranose has [à¿]D = +52.8o. When either of them is dissolved in water and allowed to reach equilibrium, the specific rotation of the solution will be +80.2o. What are the percentages of each anomer at equilibrium?

### Specific rotation of glucose molecule (anomers)

Q1. ?-D-Galactopyranose has [?]D = +150.7o, and ?-D-galactopyranose has [?]D = +52.8o. When either of them is dissolved in water and allowed to reach equilibrium, the specific rotation of the solution will be +80.2o. What are the percentages of each anomer at equilibrium? (Original formatted question attached.) I reall

### Equilibrium Concentrations

The equilibrium constant of the reaction A <--> 2B + C shown in Figure 9.3 (attached file) is 25.6 mol^2/L^2 at an unspecified temperature. The equilibrium concentrations in this system are [A]= 0.110 M, [B]= 1.78 M and [C]= 0.890 M. The reaction system is slugged with an additional amount of reactant, equal to a concentration o

### Working with Kp for the equilibrium

At an unspecified temperature, the equilibrium reaction system I2(g) + Cl2(g) <--> 2ICl(g) has a partial pressure of ICl(g) that is 5520 times the partial pressure of I2(g). In turn, the partial pressure of I2(g) is 2.75 times the partial pressure of Cl2(g). What is Kp for the equilibrium at this unspecified temperature?

### Equilibrium Disassociation Constants

The equilibrium dissociation constant, K(subscript p), of the reaction H2-->2H/H2<--2H is 3.6 x 10^-33 atm. 1.00 mol of H2 is injected into a 10.5-L oven at 600 K and allowed to reach equilibrium. Calculate the total number of free hydrogen atoms in the reaction system.

### Equilibrium Problem - Number of Moles

Part A: If we start with 0.500 moles of H2 (subscript) and 0.500 moles of I2 (subscript) in a 5.25 L reaction vessel at 698 K, how many moles of each of the three gases will be present at equilibrium? Equation: H2(subscript) + I2(subscript) <--> 2HI KEQ= 54.3 at 698 K Part B: The same set up as part A, but this time

### Determining potential and writing an equilibrium constant expression

When VO2+ reacts with Ti2+ in acid solution the products are V2+ and TiO2+. a) What is the potential of the cell Pt/VO2+, V2+//TiO2+, Ti2+/Pt if all species are a 1 M. b) Write the equilibrium constant expression and calculate the value of the equilibrium constant.

### Chemical-Reaction Equilibria: Molar Ratio Calculations

Please see the attached file for the fully formatted problem(s). Hydrogen gas is produced by the reaction of steam with "water gas," an equimolar mixture of H2 and CO obtained by the reaction of steam with coal. A stream of "water gas" mixed with steam is passed over a catalyst to convert CO to CO2 by the reaction: H2O(g) +

### Chemistry Word Problem

The Apparatus shown below consists of 3 temperature-jacketed 1.000 L bulbs connected by stopcocks. Bulb A contains a mixture of H2O(g), CO2(g), and N2(g) at 25 degrees C and a total pressure of 564 mmHg. Bulb B is empty and is held at a temperature of -70 degrees C. Bulb C is also empty and is held at a temperature of -196 degre

### Find Kp and Kc given an equilibrium equation, T, and P and % dissociation.

2NOBr(g) + Br2(g) <----> 2BrNO(g) @ equilibrium. NOBr is 34% dissociated at 25degreesC and total pressure is 0.25 atm. Calculate Kp and Kc. I know how to get Kp and Kc with given # of moles @ equilibrium, but cannot figure out how to get it from the percent dissociation. I tried inputting various values that I thought wer

### Concentration of an Ion in Equilibrium

The Ksp for silver iodide is 8.3 x 10^-17. What is the concentration of Ag+ in equilibrium with AgI(s) if [1-]= 1.0 x 10(^-1)M? a. 9.1 x 10(^-9)M b. 1.0 x 10(^-1)M c. 1.2 x 10(^-15)M d. 8.3 x 10(^-16)M e. 8.3 x 10(^-17)M

### Ratio of Products to Reactants in an Equilibrium Gaseous Mixture

Which of the following will NOT change the ratio of the products to reactants in an equilibrium mixture for a chemical reaction involving gaseous species? a. increasing the pressure b. decreasing the volume c. addition of a solid reactant d. removal of a gaseus product e. none of the above

### Equilibrium partial pressure of a gas

For the system CO(g)+H2O(g) <--> CO2(g)+H2(g) Kp is 1.6 at 900K. If 0.500 atm CO(g) and 0.500 atm H2O(g) are combined in a sealed flask, what is the equilibrium partial pressure of CO2(g)? a. 0.279 atm b. 0.308 atm c. 0.471 atm d. 0.608 atm e. 0.942 atm

### Chemistry help: Equilibrium constant

Nitrosyl chloride decomposes according to this reaction: 2NOCl(g) (equilibrium sign) 2NO(g)+Cl2(g) 0.600 atm of nitrosyl chloride is sealed in a flask and allowed to reach equilibrium. If 27% of the NOCl decomposes, what is the equlibrium constant for the reaction? a. 0.00485 b. 0.781 c. 0.0300 d. 0.370 e.

### Finding the value of the equilibrium constant.

For the reaction below, the partial pressures of gases at equilibrium are as follows: H2=7.1x10^-5 atm, Cl2=2.5x10^-6 atm, and HCl=3.0atm. What is the value of the equilibrium constant Kp? H2(g)+Cl2(g) = 2HCl(g)

### Reactions

For which of the following reactions does Kc equal Kp? a. C2H4(g)+H2(g) (equilibrium sign) C2H6(g) b. H2(g)+l2(s) (equilibrium sign) 2Hl(g) c. 2S(s)+3O2(g) (equilibrium sign) 2SO3(g) d. SO2(g)+NO2(g) (equilibrium sign) SO3(g)+NO(g) e. both answers b and d

### Equilibrium constant reaction

The equilibrium constant for a gas phase reaction is measured at two temperatures. At 100 degrees Celsius, the equilibrium constant is 36. At 200 degrees Celsius, the equilibrium constant is 147. Which of the following statements is correct for this equilibrium? a. the reaction is first order b. the reaction is endother

### Voltaic cell reaction

A voltaic cell is based uon the following overall reaction: 2H+(aq)+Sn(s)-->H2(g)+Sn2+(aq) where E=0.141V. Calculate the equilibrium constant at 25 degrees Celsius.

### Calculating delta G given the equilibrium constant and Kelvins.

The value of the equilibrium constant for a particular reaction is 2.34 x 10^3 at 298k. Calculate the change in G for this reaction.

### Determining the effect that a salt has on a molecule at equilibrium conditions.

Consider the equilibrium of Mg(OH)2(s) in water. What would be the effect of adding KCl? a. The KCl has no effect on the system b. Reaction goes to the right c. Reaction goes to the left d. Silver chloride solubility increases e. Silver dichloride precipitates

### Equilibrium: Value of the constant

The value of the equilibrium constant for the following reaction is 345. A+2B(equilibrium sign)3C+D What is the value of the equilibrium constant for the following reaction? 2A+4B(equilibrium sign)6C+2D K=?

### Calculating an equilibrium constant expression.

What is the equilibrium constant expression for dissolving calcium carbonate in water?

### Equilibrium Pressure in a System

Hydrogen iodide can decompose into hydrogen and iodide gases. Kp for the reaction is 0.016. If 0.350 atm of Hl(g) is sealed in a flask, what would be the total pressure of the system when equilibrium is established? a. 0.258atm b. 0.279atm c. 0.350atm d. 0.385atm e. 0.412atm

### Equilibrium pressure and constant

At 25 degrees Celsius, the decomposition of dinitrogen tetraoxide has an equilibrium constant(Kp) of 0.144. If the equilibrium pressure of nitrogen dioxide is 0.298 atm, what is the pressure of dinitrogen tetraoxide? a. 2.07atm b. 0.162atm c. 0.617atm d. 0.0128atm

### The equilibrium constant, Kp

At 100 degrees celsius, the molarities of dinitrogen tetraoxide and nitrogen dioxide are as follows: [N204]=0.037mol/L and [NO2]=0.12mol/L What is the value of the equilibrium constant Kp?

### Calculating the partial pressure of a gas at equilibrium given the equilibrium constant

At a given temperature, the equilibrium constant (Kp) for the decomposition of dinitrogen dioxide is 0.172. If 0.224atm N2O4 is sealed in a flask, what partial pressure of NO2 will exist at equilibrium?

### Equilibrium Constants

a) Determine the value for the equilibrium constant if there are present at equilibrium 5.0mol of Nitrogen, 7.0 mol Oxygen, and 0.10 mol NO2 in a 1.5 L vessel. N2 + O2 --> 2NO2 b) Determine the value for the equilibrium constant for the reaction A+ B --> 2C, if 1.0 mol A, 1.4 mol B, and 0.50 mol C are places in a 1.0 L ves

### Initial velocity of reaction and Haldane relationship enzyme kinetics.

A reversible reaction described by the chemical equation shown below (equation one) has an equilibrium constant of 10. (S represents substrate, P represents product.) If we have a mixture containing [S]=2x10E-5 M and [P]=3x10E-5M, and we know that KmS=3x10E-5 M, Vmax (forward reaction) =2 micromole /(L min), and Vmax (reverse