The Decomposition of a Solution of Hydrogen Peroxide, H₂O₂, Was

question 17

Multiple Choice

The decomposition of a solution of hydrogen peroxide, H₂O₂, was monitored over several days. Initially, hydrogen peroxide was present at a concentration of 1 mol L^-1; after four days the hydrogen peroxide was present at a concentration of 0.5 mol L^-1. What is the rate of the reaction for the decomposition of hydrogen peroxide?

• A) 1.40  10^-6 mol L^-1
• B) 1.40  10^-9 mol L^-1 s^-1
• C) 1.40  10^-6 mol L^-1 s^-1
• D) 1.25  10^-1 mol L^-1 day^-1
• E) 8.68  10^-5 mol L^-1 min^-1

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