Answer:
(a) Common
salt = NaCI
Molecular
mass = Na + Cl
= 23+35.5=
58.5 u
(b) Sodium
carbonate
Molecular
mass =2 x 23 + 12 + 3 x 16 = 106 u
(c) Caustic
soda = NaOH
Molecular mass = Na
+ 0 + H = 23 + 16+1=40 u
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