Molar Mass Examples (Write On Paper If Needed)

Question 1

Calculate the molar mass of 1 mole:

Copper sulphate CuSO4
(Use paper if needed)

Answer 1

Cu= 1x63.5g
S= 1x32.1g
O= 4x16g
=159.g

Question 2

Calculate the molar mass of 1 mole:

Potassium nitrate KNO3
(Use paper if needed)

Answer 2

K= 1x39.1g
N= 1x14g
O= 3x16g
=101.1g

Question 3

Calculate the molar mass of 1 mole:

Nickel (lll) sulphate Ni2S3
(Use paper if needed)

Answer 3

Ni= 2x58.7g
S= 3x32.1g
=213.7g