A 5.00 g sample of a dry mixture of potassium hydroxide, potassium carbonate, and potassium chloride is reacted with 0.100 L of a 2.00 M HCl solution.
a. A 249 mL sample of dry CO2 gas, measured at 22 degrees Celsius and 740 Torr, is obtained from the reaction. What is the percentage of potassium carbonate in the original mixture?
b. The excess HCl is found to be fully neutralized by 86.6 mL of a 1.50 M NaOH solution. Calculate the percentages of potassium hydroxide and potassium chloride in the original mixture.
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