Calculate The Molecular Mass Of The Following:- (A) H2CO3 (B) C2H5OH (C) H2SO4

Molecular mass or molecular weight = Number x Atomic mass

(A) H2CO3

H– 2 * 1 = 2

C– 1 * 12 = 12

O– 3 * 16 = 48

——-

62

——-

The molecular mass of Carbonic acid- H2CO3 is g/mol.

(B) C2H5OH

C– 2 * 12 = 24

H– 6 * 1 = 6

O– 1 * 16 = 16

——-

46

——-

The molecular mass of Ethanol – C2H5OH is 46 g/mol.

(C) H2SO4

H– 2 * 1 = 2

S– 1 * 32 = 32

O– 4 * 16 = 64

——-

98

——-

The molecular mass of Sulfuric acid – H2SO4 is 98 g/mol.

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