Question

Relative atomic masses (Ar): H = 1; C = 12; N = 14; O = 16; Mg = 24; Ca = 40

1 Calculate the mass of one mole of each of the following substances:

a Ammonia, NH3

b Methane, CH4

c Calcium carbonate, CaCO3

d Magnesium hydroxide, Mg(OH)2.

Answer 1

Answer:

MASSES:-

1. 17

2. 16

3.100

4. 68

HOPE YOU AGREE

Answer 2

Answer:

1. 17.031 g/mol

2. 16.04 g/mol

3. 100.0869 g/mol

4. 58.3197 g/mol