Calculate the time needed for the amount of ethane to fall, Ask an Expert

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Ethane, C2H6, forms ·CH3 radicals at 700.°C in a first-order reaction, for which k = 1.98 h-1. (a) What is the half-life for the reaction? (b) Calculate the time needed for the amount of ethane to fall from 1.43 10-3 mol to 2.00 10-4 mol in a 500. mL reaction vessel at 700.°C. (c) How much of a 6.92 mg sample of ethane in a 500. mL reaction vessel at 700.°C will remain after 34 mins?

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