Chapter 3, Problem 89E

Interpretation Introduction

Interpretation: The mass of ${\text{F}}_{\text{2}}$ needed to produce $\text{120}\text{g}$ of ${\text{PF}}_{\text{3}}$ in the given reaction with $78.1\%$ yield is to be calculated.

Concept introduction: The relation between moles of reaction species is estimated through the stoichiometric coefficients written with each species in the reaction. These coefficients are useful in calculating reaction’s yield. The stoichiometry calculations are useful in determining the limiting reactant on which the yield of reaction is actually dependent.