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.)
What is the mass of the solid NH4Cl formed when 64.0 g of NH3 are mixed with an equal mass of HCl? What is the volume of the gas remaining, measured at 14.0° C and 752 mmHg?
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The specific gravity of mercury is 13.64 . What would be the mass of a sample of mercury that occupies a volume of 4.55 mL?
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