The Rate Constant for a First Order Reaction Has the Value

question 16

Multiple Choice

The rate constant for a first order reaction has the value of 1.25×10^-3s^-1. If the initial concentration of reactant is 2.5 mol·L^-1, what will be the molar concentration of the reactant after 5 minutes?

• A) 2.31
• B) 1.72
• C) 2.49
• D) 0.78
• E) none of the above

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