Chapter 18, Problem 132CP

Interpretation Introduction

Interpretation: The free halogen formed in the decomposition of lead(II) halide reaction should be determined.

Concept introduction: The sum of each element present in a compound multiplied by the number of atoms of each element is said to be its molar mass.

The mathematical relation between molar mass and number of moles is:

  $\text{number of moles of the compound = }\frac{\text{given mass of the compound}}{\text{Molar mass of the compound}}$