Question

What is the molar mass of $\mathrm{K}$?

Answer 1

Step1. Molar mass

• The mass of $1$ mole of a substance is called its molar mass.

Step2. Formula for molar mass

Molar mass =$\text{The atomic mass of element × number of atoms given in subscript}$

Step3. Molar mass of $\mathrm{K}$

Molar mass of $\mathrm{K}$=$39.10{\text{g mol}}^{-1}\text{×1}$

=$39.10{\text{g mol}}^{-1}$

Hence, the molar mass of $\mathrm{K}$ is $39.10{\text{g mol}}^{-1}$