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Question

Calculate the normality of 1.11 gm of CaCl2 is dissolved in 250 ml solution.


A

0.1 N

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B

0.25 N

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C

0.08 N

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D

0.3 N

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Solution

The correct option is C

0.08 N


Normality = No.of gram equivalents of soluteVolume of solution (in litre)

equivalent mass = Molecular MassValenecy factor

= 1112 [Ca+0 Ca2+ + 2e] = 55.5

No of gram equivalents = 1.1155.5

Normality = 1.1155.52501000 = 0.08 N


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