Question

4L of 0.02 M aqueous solution of NaCl was diluted by adding one litre of water. The molality of the resultant solution is ________ .
(a) 0.004
(b) 0.008
(c) 0.012
(d) 0.016



Plsss reply Nilesh!

Answer 1

☆ ANSWER ☆

Option D is the correct answer.

Given:- V1 = 4L

V2 = 5L

M1 = 0.02 M

To find:- M2

Formula to be used:- M1V1 = M2V2

Solution:-

M2 = M1V1/V2

M2 = 0.02×4/5

M2 = 0.016.

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Answer 2

Answer:

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