Question

1. Calculate the molar mass of the following:
I. H2O
II. H2SO4​

Answer 1

Answer:

Molar mass is defined as the mass of molecule or compound is gram per mole is called molar mass.

Formula mass is defined as the atom present in a compound and their sum of mass number is called called formula mass. It applied only ionic compound.

Molecular mass is defined as the atom present in a compound ans their sum of mass number is called molecular mass. It applied covalent compound and ionic compound.

Know calculate molar mass of H2SO4 =

Number hydrogen atom × atomic mas+Number of super atom×mass number+Number of oxygen atom×mass number.

=2×1+32×1+16×4

=98g/mol.

Explanation:

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Answer 2

☆H20(Water)

•Atomic mass of H(Hydrogen)=1u

•Atomic mass of O(Oxygen)=16u

Thus,molecular mass of H20:-

=>1×2+16

=>18u

Since,molecular mass of H2O is 18u.

Thus,molar mass of H2O is 18g.

☆H2SO4(Sulphuric acid)

•Atomic mass of H(Hydrogen)=1u

•Atomic mass of S(Sulphur)=32u

•Atomic mass of O(Oxygen)=16u

Thus,molecular mass of H2SO4:-

=>1×2+32+16×4

=>98u

Since,molecular mass of H2SO4 is 98u.

Thus,molar mass of H2SO4 is 98g.