Question

The reactant concentration in a zero-order reaction was 8.00×10−2 M after 165 s and 2.00×10−2 M after 320 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. k0th = 3.87×10−4 Ms

Part B What was the initial reactant concentration for the reaction described in Part A? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.

Part C The reactant concentration in a first-order reaction was 5.70×10−2 M after 50.0 s and 3.10×10−3 M after 100 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.

Part D The reactant concentration in a second-order reaction was 0.770 M after 300 s and 1.40×10−2 M after 830 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.