what is the mass of 9.45 mol of aluminum oxide (al₂o₃)?\n254 g\n709 g\n964 g\n1120 g
what is the mass of 9.45 mol of aluminum oxide (al₂o₃)?\n254 g\n709 g\n964 g\n1120 g
Answer
Explanation:
Step1: Calculate molar mass of Al₂O₃
Al has molar - mass of 26.98 g/mol and O has molar - mass of 16.00 g/mol. Molar mass of Al₂O₃ = 2×26.98 g/mol+3×16.00 g/mol = 53.96 g/mol + 48.00 g/mol=101.96 g/mol
Step2: Calculate mass of 9.45 mol of Al₂O₃
Mass = number of moles×molar mass Mass = 9.45 mol×101.96 g/mol = 964.522 g≈964 g
Answer:
964 g