Molar Mass of Copper(II) sulfate
CuSO4 — 159.602 g/mol, worked out element by element.
Molar mass of Copper(II) sulfate, CuSO₄
159.602 g/mol
Molecular weight 159.602 · 6 atoms per formula unit
Also known as: cuso4, cupric sulfate, copper sulphate.
Anhydrous and white; the familiar blue crystals are the pentahydrate.
How 159.602 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 4 | 15.999 | 63.996 | 40.10% |
| Copper | 1 | 63.546 | 63.546 | 39.82% |
| Sulfur | 1 | 32.06 | 32.060 | 20.09% |
| Total | 6 | 159.602 | 100% |
M = 4 × 15.999 + 1 × 63.546 + 1 × 32.060 = 159.602 g/mol
Grams to moles for Copper(II) sulfate
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0063 mol | 3.773 × 10^21 |
| 10 g | 0.0627 mol | 3.773 × 10^22 |
| 25 g | 0.1566 mol | 9.433 × 10^22 |
| 50 g | 0.3133 mol | 1.887 × 10^23 |
| 100 g | 0.6266 mol | 3.773 × 10^23 |
| 250 g | 1.5664 mol | 9.433 × 10^23 |
| 159.602 g | 1 mol | 6.022 × 10^23 |
For any other amount, use the molar mass calculator, or the molarity calculator to make up a solution of a given concentration.
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Frequently Asked Questions
What is the molar mass of Copper(II) sulfate?
The molar mass of Copper(II) sulfate (CuSO4) is 159.602 g/mol. That is the sum of the standard atomic weights of all 6 atoms in one formula unit: 4 × 15.999 + 1 × 63.546 + 1 × 32.060 = 159.602.
What is the molecular weight of Copper(II) sulfate?
159.602 — the same number as the molar mass, but as a dimensionless ratio rather than in g/mol. The two terms describe the same arithmetic, so a molecular weight of 159.60 and a molar mass of 159.60 g/mol are the same answer.
How many moles are in 100 g of Copper(II) sulfate?
100 ÷ 159.602 = 0.6266 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Copper(II) sulfate?
By mass, Copper(II) sulfate is 40.10% oxygen, 39.82% copper, 20.09% sulfur. Each element's share is its total mass in the formula divided by 159.602.
How many atoms are in one formula unit of Copper(II) sulfate?
6: 4 oxygen, 1 copper, 1 sulfur. One mole contains 6.02214076 × 10²³ formula units, so a mole of Copper(II) sulfate contains 6 × 6.022 × 10²³ atoms in total.