1.

What volume of 0.45 M H_(3)PO_(4) is needed to neutralise 60 mL of 0.60 N NaOH solution ? (Assume that there is a complete ionisation of acid and base)

Answer»

Solution :(i) BALANCED equations and comparison of equivalents
(ii) BASICITY of acid
(iii) calculation of NORMALITY of `H_(3)PO_(4)`
(iv) calculation of number of equivalents of base
(v) calculation of volume of acid required based on normality of acid and number of equivalents of base
(vi) 26.6 ml


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