Molar Mass of KI (Potassium Iodide)
Molar Mass Calculator
What is the molar mass of KI?
Answer
M(KI) ≈
166.00 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 | |
|---|---|---|---|---|
| Kpotassium | 1 | 39.098 | 39.098 w ≈ 23.55% | ≈ 23.55% |
| Iiodine | 1 | 126.90 | 126.90 w ≈ 76.45% | ≈ 76.45% |
| Σ = 165.998 ≈ 166.00 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
I 76.45%
K 23.55%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| Ca(NO₃)₂ (calcium nitrate) | 164.086 |
| Ho (holmium) | 164.93 |
| C₉H₁₁NO₂ (phenylalanine) | 165.192 |
| KI (potassium iodide) | 166.00 |
| C₈H₆O₄ (terephthalic acid) | 166.132 |
| KBrO₃ (potassium bromate) | 166.999 |
| Er (erbium) | 167.26 |