Question

Equivalent mass of H3PO4 (Molar mass = M) in the following reaction is 2NaOH +H3PO4 —----Na 2HPO4 + 2H2O​

Answer 1

Answer:

49

Explanation:

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Answer 2

Answer:

Correct option is

A

49

Here, the acid is phosphoric acid.

It's molar mass is 98g/mol.

Equivalent weight of acids are calculated by dividing the molar mass of the acids with number of hydrogen ions donated by acids.

Here Phosphoric acid has donated 2H+ ions.

Therefore, 

Equivalent weight=298 g/mol=49 g/mol

Hence, this is the answer.

Explanation:

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