A student obtained the following data for the decomposition of hydrogen peroxide in dilute sodium hydroxide...

A student obtained the following data for the decomposition of hydrogen peroxide in dilute sodium hydroxide at 20 °C.

H₂O₂(aq)H₂O(l) + ½ O₂(g)

[H₂O₂], M	9.84×10^-2	4.92×10^-2	2.46×10^-2	1.23×10^-2
time, min	0	7.96	15.9	23.9

(1) What is the half-life for the reaction starting at t=0 min? min

What is the half-life for the reaction starting at t=7.96 min? min

Does the half-life increase, decrease or remain constant as the reaction proceeds? _________increasedecreaseremain constant

(2) Is the reaction zero, first, or second order? _______zerofirstsecond

(3) Based on these data, what is the rate constant for the reaction? min^-1

Expert Solution

queen_honey_blossom answered 2 years ago

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