Question

calculate the molar mass of the following substances.
a)EthyneC2H2
b) Sulphur molecule S8
c) Phosphorus molecule, P4 (Atomic mass of aluminium = 31)
d) Hydrochloric acid, HCI
e)Nitric acid , HNO3​

Answer 1

Answer:

Heya mate,

a)Molar mass of C2H2=12×2+1×2=24+2=26 g

b)Molar mass of S8=32×8=256 g

c)Molar mass of P4=31×4=124 g

d)Molar mass of HCl=1+35.5=36.5 g

e)Molar mass of HNO3=1+14+16×3=63 g

Hope it helps you.