For preparing 0.1 N solution of a compound from its impure sample of which the percentage purity is known, the weight of the substance required will be
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a
More than the theoretical weight
b
Less than the theoretical weight
c
Same as the theoretical weight
d
None of these
answer is A.
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Detailed Solution
In the laboratory solution is prepared by using 100% pure sample. As the percentage purity decreases amount of solute required to prepare solution increases.