Question

how to calculate ph of solution based on normality

Answer 1

fast we know that the definition of normality..
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it is the no.of gram equivalents of the solute dissolved per litre of the solution.

Normality=no.pf gram equivalents of solute/volume of solution in litres

or

no.of gram equivalents of the solute×1000/volume of solutions in mL

The unit of normality are gram equivalent per litre

now take a example:-

Q) calculating of solution containing 31.5g of hydrated oxalic acid (H2C2O4.2H2O) in 1250ml of solutions? ????????

Ans:--
mass of oxalic acid=31.5g

equivalents of oxalic acid =mass of solute/equivalent mass
=31.5/ equivalent mass

equivalent mass =126/2=63

now normality=31.5/63×1000/1250=0.5×1000/1250=0.4N

hope it will help you♥♥♥

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