Chapter 10, Problem 49E

A mixture of tetraphosphorus trisulfide and powdered glass is in the white tip of strike-anywhere matches. The ${\text{P}}_{\text{4}}{\text{S}}_{\text{3}}$ is made by the direct combination of the elements: $8{\text{P}}_{\text{4}}+3{\text{S}}_{\text{8}}\to 8{\text{P}}_{\text{4}}{\text{S}}_{\text{3}}$. If $133\text{g}$ of phosphorus is mixed with the full contents of a $126\text{-g}\left(4\text{-oz}\right)$ bottle of sulfur, how many grams of the compound can be formed? How much of which element will be left over.

The tips of strike-anywhere matches contain tetraphosphorus trisulfide,

which reacts with the oxygen in the air in an exothermic change to inititae

the burning reaction.