The active ingredient of some antiperspirants is \(\mathrm{Al}_{2}(\mathrm{OH})_{5} \mathrm{Cl} .\) Calculate the mass percent of each element in this ingredient.

Question: Find the mass percent of each element in the compound Al₂(OH)₅Cl. Answer: To find the mass percent of each element in the compound Al₂(OH)₅Cl, perform the following steps: 1. Calculate the molar mass of Al₂(OH)₅Cl: (2 × 26.98 g/mol) + (5 × ((1 × 16.00 g/mol) + (1 × 1.01 g/mol))) + (1 × 35.45 g/mol) 2. Determine the mass of each element in the compound: - Mass of Al: 2 × 26.98 g/mol - Mass of O: 5 × 16.00 g/mol - Mass of H: 5 × 1.01 g/mol - Mass of Cl: 1 × 35.45 g/mol 3. Calculate the mass percent of each element using their respective masses and the molar mass of Al₂(OH)₅Cl: - Mass percent of Al: (2 × 26.98 g/mol) / molar mass of Al₂(OH)₅Cl × 100% - Mass percent of O: (5 × 16.00 g/mol) / molar mass of Al₂(OH)₅Cl × 100% - Mass percent of H: (5 × 1.01 g/mol) / molar mass of Al₂(OH)₅Cl × 100% - Mass percent of Cl: (1 × 35.45 g/mol) / molar mass of Al₂(OH)₅Cl × 100% After performing these steps and calculations, you will obtain the mass percent of each element in Al₂(OH)₅Cl.