The concentration of Ag_2 Cr_2O_7 is 6.5xx10^(-5)M in concentrated solution of Cr_2O_7^(2-)at a temp. then calculate K_2Cr_2O_7

The concentration of Ag_2 Cr_2O_7 is 6.5xx10^(-5)M in concentrated sol

1.	The concentration of Ag_2 Cr_2O_7 is 6.5xx10^(-5)M in concentrated solution of Cr_2O_7^(2-)at a temp. then calculate K_2Cr_2O_7
Answer» SOLUTION :`K_(sp)=[Ag^+]^2 [Cr_2O_7^(2-)]` `therefore K_(sp)=4S^3=4(6.5xx10^(-5))^3` `=1.098xx10^(-12)` Where S=Solubility of `Ag_2Cr_2O_7=6.5xx10^(-5)` M