Chapter 10.3, Problem 48SSC

Interpretation Introduction

Interpretation:

The conversion factors needs to be identified that is used to convert number of moles and mass of a compound.

Concept introduction:

The number of moles of a compound helps in determining the mass of the compound if molar mass of the compound is known. This is because molar mass is mass of compound in 1 mol. If this is known, the mass in any number of moles can be calculated.

Explanation of Solution

The relation between number of moles and mass of a substance is represented as follows:

$n=\frac{m}{M}$

Here, m is mass and M is molar mass.

Here, molar mass is mass in 1 mol thus, if this value is known, number of moles can be converted into mass.

Conclusion

Thus, if molar mass is known, mass of compound can be obtained from number of moles.