What is the formula mass of Ca(OH)_2?

May 21, 2016

$74.1$

Explanation:

The atomic mass of Calcium (Ca) is 40.1

The atomic mass of Oxygen (O) is 16.

The atomic mass of Hydrogen (H) is 1.

Therefore the relative formula mass would be

$40.1 + \left(\left(16 + 1\right) \times 2\right)$ = $40.1 + 34$

= $74.1$