To calculate the molar mass of SbBr3 (antimony(III) bromide), we need to determine the atomic masses of the constituent elements and sum them up.
The atomic masses (also known as the molar masses) of the elements are as follows:
- Sb (antimony) has an atomic mass of 121.76 g/mol.
- Br (bromine) has an atomic mass of 79.904 g/mol.
Since SbBr3 consists of one antimony atom and three bromine atoms, we can calculate its molar mass as follows:
Molar mass of SbBr3 = (1 × atomic mass of Sb) + (3 × atomic mass of Br) = (1 × 121.76 g/mol) + (3 × 79.904 g/mol) = 121.76 g/mol + 239.712 g/mol = 361.472 g/mol
Therefore, the molar mass of SbBr3 is approximately 361.472 g/mol.