$2HN{O}_3(aq)+N{a}_{2}C{O}_3(aq)longrightarrow2NaN{O}_3(aq)+C{O}_2(g)+H_{2}O(l)$

A student added $0\mathrm{.}205g$ of sodium carbonate $(N{a}_{2}C{O}_3)$ to $44\mathrm{.}00mL$ of $3\mathrm{.}0M$ nitric acid $(HN{O}_3)$ in a closed $250mL$ Erlenmeyer flask. Bubbles appeared in the solution, and the pressure increased. The temperature increased, then slowly decreased. When the temperature reached $21\mathrm{.}5C,$ the student attached a syringe to the flask. The plunger on the syringe moved out until the pressure equalized. The final volume of the syringe was $46\mathrm{.}8mL.$

Calculate the moles of carbon dioxide gas generated by the reaction.

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What is the molar volume of the carbon dioxide gas? Calculate the molar volume based on the measured volume and your calculated number of moles of carbon dioxide gas.

molar volume: