Molar Mass of Ca(OH)2

How to work out the molar mass of Ca(OH)2

1. Count the atoms of each element in Ca(OH)2: 1 Ca, 2 O and 2 H.
2. Multiply each count by the element's atomic weight: 1 × 40.078 = 40.078; 2 × 15.999 = 31.998; 2 × 1.008 = 2.016.
3. Add the results: 40.078 + 31.998 + 2.016 = 74.092 g/mol.

Frequently asked questions

What is the molar mass of Ca(OH)2?

The molar mass of calcium hydroxide (Ca(OH)2) is 74.092 g/mol, so one mole of it weighs 74.092 grams.

How many moles are in 100 grams of Ca(OH)2?

100 g ÷ 74.092 g/mol = 1.350 mol.

Which element makes up most of the mass of Ca(OH)2?

Ca, at 54.09% of the mass.