Numford
Molar mass

Molar mass of ozone

48.00 g/molO₃

Molar mass

Molar mass. The mass of one mole in grams: add the atomic mass of every atom in the formula. Masses. Standard atomic masses to two decimals, hydrogen 1.008, every element to uranium. Typing. Ca(OH)2, (NH4)2SO4, CuSO4.5H2O and K4[Fe(CN)6] all work.

48.00g/mol

O₃

  • O× 3100.00%
  1. O3 × 16.0048.00
  2. Total48.00 g/mol

Grams, moles, particles

Type any one. The other three fill in. Moles. From grams, particles or litres they are rounded to 3 significant figures first, as in a worked answer. 1 mol = 6.022 × 10²³ particles = 22.7 L of gas at STP (1 bar); 22.4 L at 1 atm.

1 mol of O₃ = 6.022 × 10²³ molecules

At 1 atm (older value): 22.40 L

Working

Add up the atoms

  1. Oxygen: 3 × 16.00 = 48.00 g
  2. Molar mass = 3 × 16.00 = 48.00 g/mol
Percentage composition

Share of the mass

  • Oxygen100.00%

1 mol of O₃ = 48.00 g

1 g of O₃ = 0.02083 mol

Ozone is made of O₃ molecules, so 1 mol of it is 48.00 g. A mole of oxygen atoms, O, is 16.00 g.

Questions

Molar mass of ozone: quick answers

What is the molar mass of ozone?

The molar mass of ozone, O₃, is 48.00 g/mol. So 1 mol of ozone has a mass of 48.00 g.

How do you calculate the molar mass of O₃?

Add the atomic masses of all the atoms: 3 × 16.00 = 48.00 g/mol.

How many moles are in 100 g of ozone?

Divide the mass by the molar mass: 100 ÷ 48.00 = 2.08 mol of O₃.

Find the molar mass of any formula