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Molar mass, rhombic sulphur

Molar mass of sulphur

256.48 g/molS₈

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.

256.48g/mol

S₈

  • S× 8100.00%
  1. S8 × 32.06256.48
  2. Total256.48 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 S₈ = 6.022 × 10²³ molecules

At 1 atm (older value): 22.40 L

Working

Add up the atoms

  1. Sulphur: 8 × 32.06 = 256.48 g
  2. Molar mass = 8 × 32.06 = 256.48 g/mol
Percentage composition

Share of the mass

  • Sulphur100.00%

1 mol of S₈ = 256.48 g

1 g of S₈ = 0.003899 mol

Solid sulphur is made of rings of eight atoms, S₈.

Sulphur is made of S₈ molecules, so 1 mol of it is 256.48 g. A mole of sulphur atoms, S, is 32.06 g.

Questions

Molar mass of sulphur: quick answers

What is the molar mass of sulphur?

The molar mass of sulphur, S₈, is 256.48 g/mol. So 1 mol of sulphur has a mass of 256.48 g.

How do you calculate the molar mass of S₈?

Add the atomic masses of all the atoms: 8 × 32.06 = 256.48 g/mol.

How many moles are in 100 g of sulphur?

Divide the mass by the molar mass: 100 ÷ 256.48 = 0.390 mol of S₈.

Find the molar mass of any formula