A particular saturated solution of silver chromate Ag 2 CrO 4 has [ Ag + ] = 5 × 10 - 5 and [ CrO 4 ] 2 - = 4 . 4 × 10 - 4 M . What is the value of K sp for Ag 2 CrO 4 ?

The dissociation of Ag 2 CrO 4 is Ag 2 CrO 4 ( s ) ⇌ 2 Ag + ( aq ) + CrO 4 2 - ( aq ) K sp = [ Ag + ] [ CrO 4 2 - ] = ( 5 × 10 - 5 ) 2 × ( 4 . 4 × 10 - 4 ) = 1 . 1 × 10 - 12

A particular saturated solution of silver chromate Ag 2 CrO 4 has [ Ag + ] = 5 × 10 - 5 and [ CrO 4 ] 2 - = 4 . 4 × 10 - 4 M . What is the value of K sp for Ag 2 CrO 4 ?

The dissociation of Ag 2 CrO 4 is Ag 2 CrO 4 ( s ) ⇌ 2 Ag + ( aq ) + CrO 4 2 - ( aq ) K sp = [ Ag + ] [ CrO 4 2 - ] = ( 5 × 10 - 5 ) 2 × ( 4 . 4 × 10 - 4 ) = 1 . 1 × 10 - 12

K sp of Ag 2 CrO 4 is 1 . 1 × 10 - 12 . What is solubility of Ag 2 CrO 4 in 0 . 1 M K 2 CrO 4 ?

Here ' x ' is the solubility: Ag 2 CrO 4 ⇌ 2 Ag + + CrO 4 2 - 2 x x K 2 CrO 4 ⇌ 2 K + + CrO 4 2 - 0 . 2 M 0 . 1 M [ Ag + ] = 2 x [ CrO 4 2 - ] = ( x + 0 . 1 ) ≈ 0 . 1 ( x < < 0 . 1 ) K sp = [ Ag + ] 2 [ CrO 4 2 - ] 1 . 1 x 10 - 12 = ( 2 x ) 2 ( 0 . 1 ) 1 . 1 x 10 - 12 = 0 . 4 x 2 x 2 = 1 . 1 × 10 - 12 0 . 4 x = 1 . 1 × 10 - 12 0 . 4 x = 1 . 65 × 10 - 6 M