Question

Calculate the equivalent mass of sulfuric acid

Answer 1

Answer:

Equivalent weights may be calculated from molar masses if the chemistry of the substance is well known: sulfuric acid has a molar mass of 98.078(5) g mol−1, and supplies two moles of hydrogen ions per mole of sulfuric acid, so its equivalent weight is 98.078(5) g mol−1/2 eq mol−1 = 49.039(3) g eq−1.

Answer 2

The molecular formula of sulfuric acid is H2so4

Its molecular mass is =(1×3)+32+(16×4)=2+32+64=98u

The expression for the equivalent weight of an acid is as given below.

Equivalent weight = Molecular mass/Number of

replaceable H

sulfuric acid contains two replaceable hydrogen.

Substitute values in the above expression.

Equivalent weight =98/2=49u.

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