The precipitate of `Ag_(2)CrO_(4)(K_(sp))=1.1 xx 10^(-12)` is obtained when equal volumes of the following mixed

Question

The precipitate of `Ag_(2)CrO_(4)(K_(sp))=1.1 xx 10^(-12)` is obtained when equal volumes of the following mixed

The precipitate of `Ag_(2)CrO_(4)(K_(sp))=1.1 xx 10^(-12)` is obtained when equal volumes of the following mixed
A. `10^(-5) M Ag^(+) ` and `10^(-3) M CrO_(4)^(2-)`
B. `10^(-5) M Ag^(+)` and `10^(-2) M CrO_(4)^(2-)`
C. `10^(-4)M Ag^(+) ` and `10^(-2) M CrO_(4)^(2-)`
D. `10^(-7) M Ag^(+) ` and `10^(-3) CrO_(4)^(-)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`Ag_(2)CrO_(4) hArr 2Ag^(+)+CrO_(4)^(2-)`
When `[Ag^(+)]=10^(-4)M` and `[CrO_(4)^(2-)]=10^(-2)M`
Ionic product `=(Ag^(+))^(2)xx CrO_(4)^(2-)`
`=((10^(-4))^(2) xx 10^(-2))/(2)=(10^(-10))/(2)`
`=5 xx 10^(-11) gtK_(sp)`

4 views Answered 2023-02-05 15:29