A student conducted an experiment to determine what factors are important in the rate of a reaction between potassium carbonate and hydrochloric acid. The student diluted 2.000 mL of 4.000 M K2CO3 to 75.00 mL, then combined that solution with 75.00 mL of 2.000 M HCl.

The student tabulated the amount of CO2 gas collected over time and recorded the results in the columns to the left.

Time (min) Volume (mL)
1 0.2
2 0.3
3 0.5
4 0.71. Use a rearrangement of PV = nRT to solve for the number of moles of CO2 produced. You may assume atmospheric pressure and room temperature. Enter (and fill down) your formula in column C.