Question

Write the relationship between molar solubility and solubility product for the given salts i) Ag2CrO4 ii) Ca3(PO4)2 iii) Cr(OH)3​

Answer 1

Answer:

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Answer 2

The relationship between molar solubility and solubility product is given by

Ksp( solubility product)= X^xY^y S^(x+y), where S is the molar solubility.

i) For Ag₂CrO₄

Ag₂CrO₄⇔2Ag⁺ + CrO₄⁻

Here, x= 2, y= 1

Ksp=  X^xY^y S^(x+y) = (2)²(1)¹S²⁺¹ = 4S³

ii)  For Ca₃(PO₄)₂

Ca₃(PO₄)₂⇔ 3Ca²⁺ + 2PO₄³⁻

Here, x= 3 , y= 2

Ksp=  X^xY^y S^(x+y) =(3)³(2)²S³⁺² = 27×4× S⁵ = 108S⁵

iii) Cr(OH)₃

Cr(OH)₃⇔Cr³⁺ + 3OH⁻

Here, x= 1 , y= 3

Ksp=  X^xY^y S^(x+y) = (1)¹(3)³S³⁺¹ = 27×1 ×S⁴= 27S⁴