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Question

nline teaching x eAssignment/takeCovalentActivity.do?locator-assignment-take f https://www.faceboo G Google N Netflix h Hulu -Watch TV, Ori Welcome to GoArmy M Gmail: Email Use the References to access important valoes if needed for this question For the decomposition of hydrogen peroxide in dilute sodium hydroxide at 20 °C the average rate of disappearance of H,02 over the time period trom t-0 min tot- 528 min is found to be 5.57 10+ M min The average rate of formation of o2 over the same time period is M min Submit Answer Retry Entire Group 3 or group attempts remaining

Explanation / Answer

consider the given reaction

2 H2O2 --> 2 H2O + O2

given

average rate of disappearance of H2O2 = 5.57 x 10-5 M/min

now

from the reaction

average rate of appearance of O2 = average rate of disappearance of H2O2 x (1 M O2 / 2 M H2O2)

average rate of appearance of O2 = 5.57 x 10-5 (M/min) x 1 / 2  

averge rate of appearance of O2 = 2.785 x 10-5 M/min

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