Chapter 5, Problem 135AE

Interpretation Introduction

Interpretation: The mass percent of cobalt present in the compound cyanocobalamin is given. The molar mass of cyanocobalamin is to be calculated.

Concept introduction: The molar mass of a substance is calculated by the formula,

$\text{Molar}\text{mass}=\frac{\text{Stated}\text{mass}\text{of}\text{the}\text{substance}}{\text{Number}\text{of}\text{moles}\text{of}\text{substance}}$

To determine: The molar mass of cyanocobalamin.