Question

the chemical formula for calcium hydroxide is: ca(oh)2. calculate the molar mass of calcium hydroxide. round your answer to 2 decimal places.

Explanation:

Step1: Identify atomic masses

Atomic mass of Ca = 40.08 g/mol, O = 16.00 g/mol, H = 1.01 g/mol.

Step2: Calculate molar mass of Ca(OH)$_2$

There is 1 Ca, 2 O and 2 H in Ca(OH)$_2$. Molar mass $M=40.08+(2\times16.00)+(2\times1.01)$.
$M = 40.08 + 32.00+2.02$.
$M=74.10$ g/mol.

Answer:

74.10 g/mol