stoichiometry Questions

Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is:

The mass of ${\text{CO}}_2$ produced by heating $20\text{g}$ of $20\%$ pure limestone is:(Atomic mass of $\text{Ca}=40$)
$${\text{CaCO}}_3\stackrel{1200\text{K}}{\to }\text{CaO}+{\text{CO}}_2$$