In What Region of the Atmosphere Is Ozone Considered a Pollutant? in What Region Is It

1. In what region of the atmosphere is ozone considered a pollutant? In what region is it considered beneficial?

1. Ammonia can react with oxygen to produce nitric oxide and water.

4 NH3(g) + 5 O2(g)  4 NO(g) + 6 H2O(g)

If the rate at which ammonia is consumed in a laboratory experiment is 4.23x10-4 mol/Ls, at what rate is oxygen consumed? At what rate is NO produced? At what rate is water vapor produced?

1. A gas, AB, decomposes and the volume of B2 produced is measured as a function of time, t. The data obtained are as follows:

Time (min)08.315.419.0

Volume (L)04.28.611.5

What is the average rate of production of B2 for the first 8.3 min? For the first 19 min?

1. A reaction has the experimental rate equation Rate = k [A]2. How will the rate change if the concentration of A is tripled? If the concentration of A is halved?

1. For each of the rate laws below, what is the order of the reaction with respect to the hypothetical substances X, Y, and Z? What is the overall order?
2. Rate = k [X][Y][Z]
3. Rate = k [X]2[Y]1/2[Z]
4. Rate = k [X]1.5[Y]-1
5. Rate = k [X]/[Y]2

1. The hypothetical reaction, A + B  C, has the rate law:

Rate = k [A]x[B]y

When [A] is doubled and [B] is held constant, the rate doubles. But the rate increases fourfold when [B] is doubled and [A] is held constant? What are the values of x and y?

1. The following experimental data were obtained for the reaction of NH4+ and NO2- in acid solution.

NH4+(aq) + NO2-(aq)  N2(aq) + 2 H2O(l)

Determine the rate law for this reaction, and calculate the rate constant.