Answer:
3421.34 g
Explanation:
2Cr2O3 → 4Cr + 3O2
From the equation abve;
2 mol of Cr2O3 produces 4 mol of Cr
Converting 5 kg of Cr2O3 to mol;
Number of moles = Mass / Molar mass = 5000 / 151.99 g/mol = 32.9 mol
2 mol = 4 mol
32.9 mol = x
Solving for x;
x = 32.9 * 4 / 2
x = 65.8 mol
Mass = Number of moles * Molar mass
Mass = 65.8 * 51.9961
Mass = 3421.34 g
