Question

1. If at a certain instant during the course of the reaction 2 NO2(g) + F2(g) ? 2 NO2F(g), the rate of formation of the product were 0.16 mol/L-s, how fast would the F2 be disappearing (also in mol/L-s) at that same instant in time? 2. The rate expression for the reaction between nitrogen dioxide and fluorine is determined experimentally and found to be rate = k [NO2] [F2]. If concentrations are expressed in moles per liter, what are the units of k, the rate constant? 3. For the reaction A + 2B ? 2C + D, when the concentration of reactant A is halved, the rate is quartered. What is the order with respect to reactant A? 4. Gallium-65, a radioactive isotope of gallium, decays by first-order kinetics. The half-life of this isotope is 15.2 minutes. How long would it take for 7/8 of a sample of this isotope to decay?

          1. If at a certain instant during the course of the reaction 2 NO2(g) + F2(g) ? 2 NO2F(g), the rate of
formation of the product were 0.16 mol/L-s, how fast would the F2 be disappearing (also in
mol/L-s) at that same instant in time?
2. The rate expression for the reaction between nitrogen dioxide and fluorine is determined
experimentally and found to be rate = k [NO2] [F2]. If concentrations are expressed in moles per
liter, what are the units of k, the rate constant?
3. For the reaction A + 2B ? 2C + D, when the concentration of reactant A is halved, the rate is
quartered. What is the order with respect to reactant A?
4. Gallium-65, a radioactive isotope of gallium, decays by first-order kinetics. The half-life of this
isotope is 15.2 minutes. How long would it take for 7/8 of a sample of this isotope to decay?

1. If at a certain instant during the course of the reaction 2 NO2(g) + F2(g) ? 2 NO2F(g), the rate of
formation of the product were 0.16 mol/L-s, how fast would the F2 be disappearing (also in
mol/L-s) at that same instant in time?
2. The rate expression for the reaction between nitrogen dioxide and fluorine is determined
experimentally and found to be rate = k [NO2] [F2]. If concentrations are expressed in moles per
liter, what are the units of k, the rate constant?
3. For the reaction A + 2B ? 2C + D, when the concentration of reactant A is halved, the rate is
quartered. What is the order with respect to reactant A?
4. Gallium-65, a radioactive isotope of gallium, decays by first-order kinetics. The half-life of this
isotope is 15.2 minutes. How long would it take for 7/8 of a sample of this isotope to decay?

Added by Alison M.

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