1. The Ka for acetic acid is 1.80 x 10-5. What is the value of AG°xn for the ionization of acetic acid in water at 25 °C? (27.1 kJ) 2. The AG° for a gas-phase reaction is +6.7 kJ. Calculate the value of Kp at 298K. (0.067) 3. Use the equation and]values below for the next 3 questions. 2N2O(g) + 302(g) 110 4NO2(g) AH-31.6 kJ AS°=-98.0 J/K a. Calculate AG°, in kJ, for the reaction at 298 K. (2.4 kJ) b. Calculate the equilibrium constant at 425 K for this reaction. (0.058) c. When 1.00 M NO2 (g), 0.50 M O2 (g) and 0.50 M N2O are mixed in a container at 298 K, which of the substance(s) will increase in concentration? (left) d. Use a completely different strategy to find the answer to part c. 4. If a 0.115 M solution of a weak acid, HX, has a pH of 4.973 at 25 °C, what is AG°, in kJ, for the dissociation reaction of this acid at 25 °C? (51.4 kJ) 5. What is the pH of a 0.198 M solution of a weak base B if AH° = -22.3 kJ and AS° = -164 J/K for the following equilibrium at 25 °C? (pH = 11.32) B(aq) + H2O(1) 12 BH(aq) + OH(aq)

1. The Ka for acetic acid is 1.80 x 10-5. What is the value of AG°xn for the ionization of acetic acid in water at 25 °C? (27.1 kJ) 2. The AG° for a gas-phase reaction is +6.7 kJ. Calculate the value of Kp at 298K. (0.067) 3. Use the equation and]values below for the next 3 questions. 2N2O(g) + 302(g) 110 4NO2(g) AH-31.6 kJ AS°=-98.0 J/K a. Calculate AG°, in kJ, for the reaction at 298 K. (2.4 kJ) b. Calculate the equilibrium constant at 425 K for this reaction. (0.058) c. When 1.00 M NO2 (g), 0.50 M O2 (g) and 0.50 M N2O are mixed in a container at 298 K, which of the substance(s) will increase in concentration? (left) d. Use a completely different strategy to find the answer to part c. 4. If a 0.115 M solution of a weak acid, HX, has a pH of 4.973 at 25 °C, what is AG°, in kJ, for the dissociation reaction of this acid at 25 °C? (51.4 kJ) 5. What is the pH of a 0.198 M solution of a weak base B if AH° = -22.3 kJ and AS° = -164 J/K for the following equilibrium at 25 °C? (pH = 11.32) B(aq) + H2O(1) 12 BH(aq) + OH(aq)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

I need help on questions 2-3?
Need help with 2-5
2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the crystals. Therefore, why can't you simply use suction filtration instead of recrystallization to purify an impure solid?
3-6 3 SOLUTIONS AND NAME SOLUTION CONCENTRATIONS 1415 Section Pre-Lab Assignment Experiment objectives A, B, and C require you to devise procedures for preparing a saturated aqueous solution of potassium sulfate, experimentally determining the density of this solution, and experimentally determining the mass percent of potassium sulfate in this solution. Your pre-lab assignment is to develop procedures for parts A, B, and C. You will then execute these procedures in lab. PREPARATION OF A SATURATED AQUEOUS POTASSIUM SULFATE SOLUTION Reminder: use a maximum of 75 mL of water. A. В. DENSITY OF SATURATED AQUEOUS POTASSIUM SULFATE SOLUTION C. MASS PERCENT OF POTASSIUM SULFATE IN A SATURATED POTASSIUM SULFATE SOLUTION
Е. NaCN Br Acetone
1) In 1-2 sentences, explain the role of iron (Fe) in the reaction below. Why is it necessary for this reaction? Br Fe Br2
Balence the equation
3 Describe the similarities and differences of the Bradford and Biuret method (400 words)
H2O, Hg²+, H,SO4 3)
However, there are many other commercially purchased inorganic and organic compounds that people routinely used in their households (or in their everyday lives). A list of 19 chemicals with common names are written below. Find each of these items in your home or in a local grocery and take picture of the container (if you do not have access to all of them choose at least 12 of them) and then complete the table below. For #16 and 17 you choose any other house hold chemical and complete the table. • Inorganic compounds 1) table salt, 2) baking soda, 3) washing soda, 4) photographic fixer, 5) Epsom salt, 6) alum, 7) chalk, 8) corn starch, 9) sand, 10) active ingredient in toothpaste or cleansing agent and disinfectant, 11) decolorizing carbon Organic compounds Naming of organic compounds will be discussed in details in Lab 10 however there are still some simple organic compounds that you encounter at your home. Organic compounds are compounds that contain at least one carbon with one…
For problems 1-4 you are not expected to come up with an exact structure. Use the provided data to identify functional groups the molecule contains and propose some possible structures that fit the data
how to separate a solid mixture of lithium bromide and barium carbonate