Question

All the salts AB,AB2,AB3 and AB4 has the same ksp which is 10`-¹⁰. Which of them have highest solubility in water?​

Answer 1

Answer:

AB4

Explanation:

AB⇌A++B−

Ksp=[A+][B−]=(S)(S)=S2

AB2⇌A++2B−

Ksp=[A+][B−]2=(S)(2S)2=4S3

AB3⇌A++3B−

Ksp=[A+][B−]3=(S)(3S)3=27S4

AB⇌A++4B−

Ksp=[A+][B−]4=(S)(4S)4=256S5

So AB4 has maximum solubility.