Question

how is equivalent weight of compund calculated?
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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 equivalent weight of any compound is the weight of that compound that is being used in the transfer of 1 mole of electron

It's formula is

(Molecular weight)/ n- factor

Here n factor is the total moles of electrons exchanged by a compound in a chemical reaction