One of the reactions used to inflate automobile air bags...

One of the reactions used to inflate automobile air bags involves sodium azide $\left(\mathrm{NaN}_{3}\right) : 2 \mathrm{NaN}_{3}(\mathrm{s}) \rightarrow 2 \mathrm{Na}(\mathrm{s})+3 \mathrm{N}_{2}(\mathrm{g}) .$ Determine the mass of $\mathrm{N}_{2}$ produced from the decomposition of $\mathrm{NaN}_{3}$ shown at right.

One of the reactions used to inflate automobile air bags involves
sodium azide $\left(\mathrm{NaN}_{3}\right) : 2 \mathrm{NaN}_{3}(\mathrm{s}) \rightarrow 2 \mathrm{Na}(\mathrm{s})+3 \mathrm{N}_{2}(\mathrm{g}) .$ Determine the mass of $\mathrm{N}_{2}$ produced from the decomposition of $\mathrm{NaN}_{3}$ shown at right.

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Key Concepts

Stoichiometry

Stoichiometry is the study of the quantitative relationships between reactants and products in a chemical reaction. It uses the coefficients from a balanced equation to determine the proportionate amounts of each substance involved, allowing for the calculation of product quantities from given amounts of reactants.

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole. It serves as a conversion factor between the mass of a compound and the number of moles, which is essential for quantitative calculations in chemical reactions.

Balanced Chemical Equation

A balanced chemical equation accurately represents the conservation of atoms in a chemical reaction by ensuring that the number of atoms for each element is the same on both sides of the equation. The coefficients in the equation are used to determine the mole ratios necessary for stoichiometric calculations.

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