What is the concentration of nitrate ions if equal volumes of `0.1 M AgNO_(3)` and `0.1 M NaCl` are mixed together?

Options

A. 0.1 M
B. 0.2 M
C. 0.05 M
D. 0.25 M

Answer

C

Explanation

0.1M `AgNO_(3)` will react with 0.1MNaCl to form 0.1M `NaNO_(3)`. But as the volume doubled , conc , of `NO_(3)^(-) = (0.1)/(2) = 0.05M`