Molar Mass of NH4I (Ammonium Iodide)
Molar Mass Calculator
What is the molar mass of NH4I?
Answer
M(NH4I) ≈
144.94 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — I: 126.90.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Nnitrogen | 1 | 14.007 | 14.007 w ≈ 9.66% | ≈ 9.66% |
| Hhydrogen | 4 | 1.0080 | 4.0320 w ≈ 2.78% | ≈ 2.78% |
| Iiodine | 1 | 126.90 | 126.90 w ≈ 87.55% | ≈ 87.55% |
| Σ = 144.939 ≈ 144.94 g/mol w = 100% | 100% | |||
Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
I 87.55%
N 9.66%H 2.78%
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