Question

Determine the molecular mass of the following compounds :

a). CH3COOH b). CaSO4 c).CuSO4.5H₂O.​

Answer 1

Explanation:

In 1 mole of the substance, you have 2 carbon atoms, 4 hydrogen atoms and 2 oxygen atoms. To find molar mass you find the molar mass of each element in the compound and add up.

2*molar mass of carbon = (12 x 2) = 24.

4*molar mass of hydrogen = (4 x 1) = 4.

2*molar mass of oxygen = (2 x 16) = 32.

Total molar mass = 24 + 4 + 32 = 60 g/mol.

Answer 2

CuSO4 .5H2O

Cu+ S + 4 (O) +5 (2H+O)

63.5 + 32 + 4(16) + 5( 2 ×1 )+ 16 )

63.5 +96 +5(18)

63.5 +186 = 249.5 amu