A) Mr(CuSO4) = 63.55 (Cu) + 32.07 (S) + 4 16.00 (O) = 159.61 g/molB) Mr(NaOH) = 22.99 (Na) + 16.00 (O) + 1.01 (H) = 39.997 g/mol = 40 g/molC) Mr(AlCl3) = 26.98 (Al) + 3 35.45 (Cl) = 133.33 g/molD) Mr(CaCO3) = 40.08 (Ca) + 12.01 (C) + 3 * 16.00 (O) = 100.09 g/mol
A) Mr(CuSO4) = 63.55 (Cu) + 32.07 (S) + 4 16.00 (O) = 159.61 g/mol
B) Mr(NaOH) = 22.99 (Na) + 16.00 (O) + 1.01 (H) = 39.997 g/mol = 40 g/mol
C) Mr(AlCl3) = 26.98 (Al) + 3 35.45 (Cl) = 133.33 g/mol
D) Mr(CaCO3) = 40.08 (Ca) + 12.01 (C) + 3 * 16.00 (O) = 100.09 g/mol