Molar mass

Molar Mass of Potassium Iodide

The molar mass of potassium iodide (KI) is 165.998 g/mol.

Potassium Iodide at a glance

PropertyValue
Molar mass165.998 g/mol
Molecular weight165.998 u
Chemical formulaKI
Monoisotopic mass165.868178 u
CAS number7681-11-0
PubChem CID4875

How to calculate the molar mass of potassium iodide

1 × 39.098 + 1 × 126.9 = 165.998 g/mol

  1. Count the atoms in KI: K 1, I 1.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 165.998 g/mol.

Elemental composition of potassium iodide

ElementAtomsAtomic weightMass (g/mol)Mass %
K Potassium139.09839.09823.553%
I Iodine1126.9126.976.447%

Grams and moles of potassium iodide

AmountEquals
1 g0.0060242 mol
10 g0.060242 mol
100 g0.60242 mol
0.1 mol16.6 g
1 mol166 g
1 g, in particles3.6278 × 10^21