At 25 ^$\circ$ C the Rate Constant for the First-Order Decomposition of a Decomposition

question 99

Multiple Choice

At 25 ^$\circ$ C the rate constant for the first-order decomposition of a pesticide solution is 6.40 *10^-3 min^-1. If the starting concentration of pesticide is 0.0314 M, what concentration will remain after 62.0 min at 25 ^$\circ$ C

• A) 1.14 * 10^-1 M
• B) 47.4 M
• C) -8.72.0 M
• D) 2.11 * 10^-2 M
• E) 2.68* 10^-2 M

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