Enter the mass of the substance (g) and the total number of moles of substance into the Molar Mass Calculator. The calculator will evaluate and display the Molar Mass.

## Molar Mass Formula

The following formula is used to calculate the Molar Mass.

**MM = m / n**

- Where MM is the Molar Mass (g/mole)
- m is the mass of the substance (g)
- n is the total number of moles of substance

## How to Calculate Molar Mass?

The following example problems outline how to calculate Molar Mass.

Example Problem #1:

- First, determine the mass of the substance (g).
- The mass of the substance (g) is given as: 100.

- Next, determine the total number of moles of substance.
- The total number of moles of substance is provided as: 25.

- Finally, calculate the Molar Mass using the equation above:

MM = m / n

The values given above are inserted into the equation below and the solution is calculated:

MM =100 / 25 = 4.00 (g/mole)

Example Problem #2:** **

For this problem, the variables needed are provided below:

mass of the substance (g) = 60

total number of moles of substance = 302

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

MM = m / n** = ?**