When solid CaCO3 is heated, it decomposes to give solid CaO and CO2 gas. A volume of 735 m of gas is collected over water at a total pressure of 730…

When solid CaCO3 is heated, it decomposes to give solid CaO and CO2
gas. A volume of 735 m of gas is collected over water at a total pressure of 730 mmHg and 16 ∘C
. The vapor pressure of water at 16 ∘C is 14 mmHg.
CaCO3(s)→CaO(s)+CO2(g)
Part A
What was the partial pressure of the CO2
gas?
Express your answer with the appropriate units.
PCO2 =
Part B
How many moles of CO2 gas were in the CO2
gas sample?
Express your answer with the appropriate units.