Problem related to first-order reaction
A certain first-order reaction (A to products) has a rate constant of 4.20×10-3 at 45 degrees celcius. How many minutes does it take for the concentration of the reactant,[A] , to drop to 6.25 of the original concentration?
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If 147 mL of wet H2 is collected over water at 24°C and a barometric pressure of 735 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr at 24°C.)
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