The rate constant for a certain first-order reaction is 0.40 min-1. Calculate the initial rate in mol/L.min, if the initial concentration of the compound involved is 0.50mol/L. Calculate the half-life of the reaction (in min).

You have a second-order reaction for B which has an initial concentration of 30.00 moles in 15.00 L. If this process has a reaction constant k = 1.90x10-6 M-1s-1 What is the half-life of this reaction in second? In minutes? What is the concentration after the first half-life? What is the concentration after 5 half-lives? What is the concentration after 3.00x104 seconds? (hint: use the integrated rate equations!)

The following data show the rate constnat of a first order reaction measured at several different temperatures. Construct and Arrhenius plot (ln k vs 1/T) to determine the activation energy (Ea). You should use a graphing program like excel to construct your graph. A sketch of the graph including the equation of the line should be included in your notebook.    temperature (K) rate constant (s-1) 375 1.68 x 10-5 400 3.50 x 10-5 500 4.20 x 10-4 600 2.11 x 10-3

A particular second order reaction has a rate constant of 0.0345 M-1 min-1 and an initial concentration of 0.300 M. What is the half-life of this reaction?     4.35 min     12.0 min     20.1 min     96.6 min

For a certain first order reaction, 20 % of the reactant is consumed after the 90. min. How long will it take for the reaction to consume 90% of the starting material under these conditions?

It is found that a gas undergoes a zero order decomposition reaction in the presence of a Ni catalyst.  If the rate constant for the reaction is 8.10x10-2M/s and the initial concentration of the gas is 0.100M How long in minutes, will it take for the concentration to decrease to 0.0010M? What would the concentration of the gas be after 65.0 minutes has elapsed? What is the half life for this reaction? What effect would double the concentration of the gas have on the rate of the reaction?

The rate constant for the following second-order reaction is 0.80/(M * s) at 10°C.2NOBr(g)→2NO(g) + Br2(g) Calculate the half-life when [NOBr]0 = 0.156 M.