The half-life of a first-order reaction is 10 minutes. Starting with an initial concentration of 12 M, the rate after 20 minutes is:

Question

0.0693 M min^–1

$0.693 \times 3$ M min^–1

$0.0693 \times 3$ M min^–1

$0.0693 \times 4 M min^–1

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