Question

The decomposition of XY is second order in XYand has a rate constant of 7.18×10^−3M^-1⋠s^-1 at a certain temperature.

Part A: What is the half-life for this reaction at an initial concentration of 0.100 M?

Give answer with three sig figs and in seconds.

Part B: How long will it take for the concentration of XY to decrease to 12.5% of its initial concentration when the initial concentration is 0.200 M?

Give answer with three sig figs and in seconds

Part C: How long will it take for the concentration of XY to decrease to 12.5% of its initial concentration when the initial concentration is 0.200 M?

Give answer with three sig figs and in seconds

Part D: if the initial concentration of XY is 0.140 M , how long will it take for the concentration to decrease to 6.80×10^−2M ?

Give answer with two sig figs and in seconds

Part E: if the initial concentration of XY is 0.050 M, what is the concentration of XY after 45.0 s ?

Give answer with two sig figs and in M

Part F: If the initial concentration of XY is 0.050 M, what is the concentration of XY after 500 s ?

Give answer with two sig figs and in M