Question

Calculate the molar mass of the following substances.
(a) Ethyne, CH,
(b) Sulphur molecule. S
(c) Phosphorus molecule, P. (Atomic mass of phosphoru
= 31)
(d) Hydrochloric acid, HCI
(e) Nitric acid, HNO,​

Answer 1

Answer:

1 .C2H2= 2×12+2×1=26g

2. S8= 8×32= 256g

3. P4=4×31=124g

4. HCL=1+35.5= 36.5g

5. HNO3=1+14+3×16=63g