Molar Mass of Silicon dioxide
SiO2 — 60.083 g/mol, worked out element by element.
Molar mass of Silicon dioxide, SiO₂
60.083 g/mol
Molecular weight 60.083 · 3 atoms per formula unit
Also known as: sio2, silica, quartz, sand.
Sand, quartz and glass; a covalent network, so "molar mass" here means one formula unit, not a molecule.
How 60.083 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 2 | 15.999 | 31.998 | 53.26% |
| Silicon | 1 | 28.085 | 28.085 | 46.74% |
| Total | 3 | 60.083 | 100% |
M = 2 × 15.999 + 1 × 28.085 = 60.083 g/mol
Grams to moles for Silicon dioxide
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0166 mol | 1.002 × 10^22 |
| 10 g | 0.1664 mol | 1.002 × 10^23 |
| 25 g | 0.4161 mol | 2.506 × 10^23 |
| 50 g | 0.8322 mol | 5.012 × 10^23 |
| 100 g | 1.6644 mol | 1.002 × 10^24 |
| 250 g | 4.1609 mol | 2.506 × 10^24 |
| 60.083 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 Silicon dioxide?
The molar mass of Silicon dioxide (SiO2) is 60.083 g/mol. That is the sum of the standard atomic weights of all 3 atoms in one formula unit: 2 × 15.999 + 1 × 28.085 = 60.083.
What is the molecular weight of Silicon dioxide?
60.083 — 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 60.08 and a molar mass of 60.08 g/mol are the same answer.
How many moles are in 100 g of Silicon dioxide?
100 ÷ 60.083 = 1.6644 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Silicon dioxide?
By mass, Silicon dioxide is 53.26% oxygen, 46.74% silicon. Each element's share is its total mass in the formula divided by 60.083.
How many atoms are in one formula unit of Silicon dioxide?
3: 2 oxygen, 1 silicon. One mole contains 6.02214076 × 10²³ formula units, so a mole of Silicon dioxide contains 3 × 6.022 × 10²³ atoms in total.