The molar mass of KBr (Potassium Bromide) is calculated by adding the atomic masses of its constituent elements, potassium (K) and bromine (Br).
The atomic mass of potassium (K) is approximately 39.10 g/mol, and the atomic mass of bromine (Br) is approximately 79.90 g/mol.
Therefore, the molar mass of KBr is:
39.10 g/mol (K) + 79.90 g/mol (Br) = 119.00 g/mol
So, the molar mass of KBr is 119.00 grams per mole.