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. (a)`0.1 N`
B. (b)`0.2 M`
C. (c )`0.05 M`
D. (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 is doubled, conc. Of
`NO_(3)^(-)=0.1/2=0.05 M`