1.

When 30 ml of 5.93 millimolar solution of AgNO_(3) was added to 2.0 ml of 8.89 millimolar solution of KCl, the mixture turns turbid. The solubility product of AgCl is

Answer»

`1.96xx10^(-6) "mol"^(2)L^(-2)`
`3.92xx10^(-6) "mol"^(2)L^(-2)`
`1.96xx10^(-6) "mol"^(-1)L^(-1)`
`3.92xx10^(-6) "mol"^(-1)L^(-1)`

Solution :After mixing `[Ag^(+)]`:
`M_(1)V_(1)=M_(2)V_(2), i.e., 30xx5.93xx10^(-13)=32xxM_(2) "or" M_(2)=5.56xx10^(-3)M`
`[Cl^(-)] : 2.0xx8.89xx10^(-3)=32xxM_(2) " or" M_(2)=5.56xx10^(-4)M`
`:.` Ionic product of AGCL `=[Ag^(+)][Cl^(-)]`
`=(5.56xx10^(-3) "mol" L^(-1))(5.56xx10^(-4) "mol" L^(-1))`
`=3.09xx10^(-6) "mol"^(2) L^(-2)`
which exceeds (a) but not(b).
UNITS in (C) and (d) are not correct.


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