For the following reaction 3 experiments have been run and the data collected is in the following table @ 25 degrees Celsius. NH4NO2(aq) ---> N2(g) + 2 H2O(l) Experiment [NH4NO2], M Rate, M/s 1 1.22 x 10-2 1.12 x 10-4 2 2.61 x 10-3 5.12 x 10-6 3 3.54 x 10-3 9.42 x 10-6 a) How long (in seconds) will it take for a 30% NH4NO2 solution to become a 19% NH4NO2 solution @25 degrees Celsius? (Hint: Use mass ratios and assume ~1g/ml for density of solutions to get you started) b) It has been determined that the rate constant is 1.3450 M-1s-1 at 65 degrees Celsius. Calculate the activation energy for the decomposition of NH4NO2. [Hint: ln k1/k2=?a/?(1/?2―1/? 1)] c) What is the half-life of a 45% solution of NH4NO2 @ 25 degrees Celsius?
For the following reaction 3 experiments have been run and the data collected is in the following table @ 25 degrees Celsius. NH4NO2(aq) ---> N2(g) + 2 H2O(l) Experiment [NH4NO2], M Rate, M/s 1 1.22 x 10-2 1.12 x 10-4 2 2.61 x 10-3 5.12 x 10-6 3 3.54 x 10-3 9.42 x 10-6 a) How long (in seconds) will it take for a 30% NH4NO2 solution to become a 19% NH4NO2 solution @25 degrees Celsius? (Hint: Use mass ratios and assume ~1g/ml for density of solutions to get you started) b) It has been determined that the rate constant is 1.3450 M-1s-1 at 65 degrees Celsius. Calculate the activation energy for the decomposition of NH4NO2. [Hint: ln k1/k2=?a/?(1/?2―1/? 1)] c) What is the half-life of a 45% solution of NH4NO2 @ 25 degrees Celsius?
Chapter8: Reaction Rates And Equilibrium
Section: Chapter Questions
Problem 8.11E
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Question
For the following reaction 3 experiments have been run and the data collected is in the following table @ 25 degrees Celsius.
NH4NO2(aq) ---> N2(g) + 2 H2O(l)
| Experiment | [NH4NO2], M | Rate, M/s |
| 1 | 1.22 x 10-2 | 1.12 x 10-4 |
| 2 | 2.61 x 10-3 | 5.12 x 10-6 |
| 3 | 3.54 x 10-3 | 9.42 x 10-6 |
a) How long (in seconds) will it take for a 30% NH4NO2 solution to become a 19% NH4NO2 solution @25 degrees Celsius? (Hint: Use mass ratios and assume ~1g/ml for density of solutions to get you started)
b) It has been determined that the rate constant is 1.3450 M-1s-1 at 65 degrees Celsius. Calculate the activation energy for the decomposition of NH4NO2. [Hint: ln k1/k2=?a/?(1/?2―1/? 1)]
c) What is the half-life of a 45% solution of NH4NO2 @ 25 degrees Celsius?
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