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Calculate equivalent mass (E) of the fol...

Calculate equivalent mass (E) of the following -
(1) K-Alum (molar mass = `M_1`) in the reaction :
`H_3PO_3 + NaOH rarr Na_2HPO_3 + H_2O`

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Calculate equivalent mass (E) of the following- K-Alum (molar mass = M_1 )

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