Textbook Problem

hen sodium bicarbonate, ${\text{NaHCO}}_{\text{3}}\left(s\right)$, is heated, sodium carbonate is produced, with the evolution of water vapor and carbon dioxide gas.

msp;  ${\text{2NaHCO}}_{\text{3}}\left(s\right) {\text{Na2CO}}_{\text{3}}\left(s\right)+{\text{H}}_{\text{2}}\text{O}\left(g\right)+{\text{CO}}_{\text{2}}\left(g\right)$

at total volume of gas, measured at $\text{29 }°\text{C}$and $\text{769}$torr, is produced when $\text{1}.00\text{ g}$of ${\text{NaHCO}}_{\text{3}}\left(s\right)$is completely converted to ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}\left(s\right)$?