Question

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

(a) More than the theoretical weight
(b) Less than the theoretical weight
(c) Same as the theoretical weight
(d) None of these
CY​

Answer 1

Answer:

B.less than the theoretical weight

Explanation:

the sample contains  impurity,therefore won't contribute to normal solution.so, we need to take more amount of sample than theoretical weight so that theoretical weight of compound  equals weight of compound in sample

Answer 2

Answer:

Option (A ) More than the theoretical weight

Explanation:

impure sample diya h mtlb..

Agar x se → y bnate h then x me impurity ki vajah se exactly y ni bnega Kucch km hi bnega kyuki impurity h agar y banana h then we hve to take more amount of substrate

@AK☺