What is the percent composition of Bromine (Br)in CuBr_(2) Round your percent to 2 decimal places. square

To find the percent composition of Bromine (Br) in , we need to follow these steps:1. **Determine the molar masses of each element in the compound:** - Copper (Cu): The atomic mass of Cu is approximately 63.55 g/mol. - Bromine (Br): The atomic mass of Br is approximately 79.90 g/mol.2. **Calculate the molar mass of :** - The formula indicates that there is 1 copper atom and 2 bromine atoms. - Molar mass of = (1 × 63.55 g/mol) + (2 × 79.90 g/mol) - Molar mass of = 63.55 g/mol + 159.80 g/mol - Molar mass of = 223.35 g/mol3. **Calculate the total mass of bromine in the compound:** - Since there are 2 bromine atoms in : - Total mass of bromine = 2 × 79.90 g/mol = 159.80 g/mol4. **Calculate the percent composition of bromine:** - Percent composition of bromine = (Total mass of bromine / Molar mass of ) × 100% - Percent composition of bromine = (159.80 g/mol / 223.35 g/mol) × 100% - Percent composition of bromine ≈ 71.34%Therefore, the percent composition of Bromine (Br) in is approximately 71.34%.