Question

The decomposition of XY is second order in XY and has a rate constant of 6.98×10⁻³ L mol−1 s−1 at a certain temperature.

Part B

If the initial concentration of XY is 0.150 mol L−1 , how long will it take for the concentration to decrease to 6.60×10⁻² mol L−1 ?  

Express your answer using two significant figures.

t= _______ s

Part C

If the initial concentration of XY is 0.050 mol L−1, what is the concentration of XY after 55 s ?

Express your answer using two significant figures.

[XY]t=________ mol L^-1

Answer 1

kt 두 A o.OJD 20. 3839 2a 3839