Molar Mass of Ammonium hydroxide
NH4OH — 35.046 g/mol, worked out element by element.
Molar mass of Ammonium hydroxide, NH₄OH
35.046 g/mol
Molecular weight 35.046 · 7 atoms per formula unit
Also known as: nh4oh, aqueous ammonia.
Ammonia in water, written as a hydroxide by convention more than by structure.
How 35.046 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 1 | 15.999 | 15.999 | 45.65% |
| Nitrogen | 1 | 14.007 | 14.007 | 39.97% |
| Hydrogen | 5 | 1.008 | 5.040 | 14.38% |
| Total | 7 | 35.046 | 100% |
M = 1 × 15.999 + 1 × 14.007 + 5 × 1.008 = 35.046 g/mol
Grams to moles for Ammonium hydroxide
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0285 mol | 1.718 × 10^22 |
| 10 g | 0.2853 mol | 1.718 × 10^23 |
| 25 g | 0.7133 mol | 4.296 × 10^23 |
| 50 g | 1.4267 mol | 8.592 × 10^23 |
| 100 g | 2.8534 mol | 1.718 × 10^24 |
| 250 g | 7.1335 mol | 4.296 × 10^24 |
| 35.046 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 Ammonium hydroxide?
The molar mass of Ammonium hydroxide (NH4OH) is 35.046 g/mol. That is the sum of the standard atomic weights of all 7 atoms in one formula unit: 1 × 15.999 + 1 × 14.007 + 5 × 1.008 = 35.046.
What is the molecular weight of Ammonium hydroxide?
35.046 — 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 35.05 and a molar mass of 35.05 g/mol are the same answer.
How many moles are in 100 g of Ammonium hydroxide?
100 ÷ 35.046 = 2.8534 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Ammonium hydroxide?
By mass, Ammonium hydroxide is 45.65% oxygen, 39.97% nitrogen, 14.38% hydrogen. Each element's share is its total mass in the formula divided by 35.046.
How many atoms are in one formula unit of Ammonium hydroxide?
7: 1 oxygen, 1 nitrogen, 5 hydrogen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Ammonium hydroxide contains 7 × 6.022 × 10²³ atoms in total.