Question

Calculate the molecular mass of
* Sulphuric acid - H2SO4
*Calcium carbonate - CaCo3
4=1 S=32 O=16 Ca=12 C=12​

Answer 1

Answer:

1. 98

2. 100

Explanation:

1. H =1

S = 32

O = 16

Molecular mass = ( 1×2) + (32×1) + (4×16)

= 2 + 32 + 64

= 34 + 64

Molecular mass = 98

of sulphuric acid

2. Ca = 40

C = 12

O = 16

Molecular mass = (1×40) + (1×12) + (3 ×16)

= 40 + 12 + 48

Molecular mass = 100

of calcium carbonate