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

Answer 1

Correct Answer - C
0.1 M `AgNO_(3)` will react with 0.1 M NaCl to form 0.1 M `NANO_(3)`. But as the volume doubled, conc. Of `NO_(3)^(-)=0.1/2=0.05 M`.