# What mass of magnesium contains the same number of atoms as 8.0g of calcium?

##### 1 Answer

Jan 15, 2018

#### Answer:

#### Explanation:

Molar Mass of Magnesium

Molar Mass of Calcium

Avogadro's constant

The number of atoms of Mg should be the same as the number of atoms of Ca, so:

You can also eliminate the step of converting to atoms, as a mol of any substance contains