Molar Mass of NaOH

How to work out the molar mass of NaOH

1. Count the atoms of each element in NaOH: 1 Na, 1 O and 1 H.
2. Multiply each count by the element's atomic weight: 1 × 22.990 = 22.990; 1 × 15.999 = 15.999; 1 × 1.008 = 1.008.
3. Add the results: 22.990 + 15.999 + 1.008 = 39.997 g/mol.

Frequently asked questions

What is the molar mass of NaOH?

The molar mass of sodium hydroxide (NaOH) is 39.997 g/mol, so one mole of it weighs 39.997 grams.

How many moles are in 100 grams of NaOH?

100 g ÷ 39.997 g/mol = 2.500 mol.

Which element makes up most of the mass of NaOH?

Na, at 57.48% of the mass.