Question

The atomic mass of copper (Cu) is 63.546 amu, the atomic mass of sulfur (S) is 32.065, and the atomic mass of oxygen (O) is 15.999 amu. Which molar mass is correct for copper sulfate (CuSO4)?(1 point)
Responses

225.802 g/mol

446.440 g/mol

111.610 g/mol

159.607 g/mol

Answer 1

CuSO4 = 63.546 (Cu) + 32.065 (S) + 4×15.999 (O) = 63.546 + 32.065 + 63.996 = 159.607 g/mol.

Correct answer: 159.607 g/mol.