Question

write the formulae for the following and
calculate the molecular mass of each of
the following
(a) Caustic potash
(b) Baking Powder
(c) limestone
(d) Caustic soda
(e) Ethanol
[K =39, 0 =16, H = 1, Na=23, Ca- 40, G=12]​

Answer 1

Formulae             Molecular mass

A) KOH               56 amu

B) NaHCO₃         82 amu

C) CaCO₃             100 amu

D) Ca(OH)₂           74 amu

E) C₂H₅OH            46 amu