Analytical Chemistry Question 266

Question: What is the concentration of nitrate ions if equal volumes of 0.1 M $ AgNO_3 $ and 0.1 M $ NaCl $ are mixed together

[NCERT 1981; CPMT 1983]

Options:

A) 0.1 N

B) 0.2 M

C) 0.05 M

D) 0.25 M

Show Answer

Answer:

Correct Answer: C

Solution:

$ M_1V_1\ =\ M_2V_2 $

$ 0.1\ \times \ V\ =\ M_2\ \times \ 2V $ Þ $ M_2=\frac{1\times V}{2V}=0.05M $