Solubility product constant ( Ksp )of salts of types MX1, MX 2 and M3 X at temperature -T are 4.0 × 10 - 8 , 3.2 × 10 - 14 and 2.7 × 10 - 15 , respectively. Solubilities (mol dm- 3 ) of the salts at temperature T" are in the order

Question

Solubility product constant ( Ksp )of salts of types MX1, MX 2 and M3 X at temperature -T are 4.0 × 10 - 8 , 3.2 × 10 - 14 and 2.7 × 10 - 15 , respectively. Solubilities (mol dm- 3 ) of the salts at temperature T" are in the order (A) MX > MX2 > M3 X  (B) M3X > MX2 > MX  (C)  MX2 > M3 X > MX  (D) MX > M3 X > MX2

Tardigrade Admin · Accepted Answer

MX: K s p = S2 = 4 × 10 - 8 ⇒ S = 2 × 10 - 4 MX2: K s p = 4 S3 = 3.2 × 10 - 14 ⇒ S = 2 × 10 - 5 M3 X: K sp = 27 S4 = 2.7 × 10 - 15 ⇒ S = 10 - 4 Order of solubility is MX > M3 X > MX2

Q. Solubility product constant ( $K_{s p}$ )of salts of types $M X_{1}, M X_{2}$ and $M_{3} X$ at temperature - $T$ are $4.0 \times 1 0^{- 8}, 3.2 \times 1 0^{- 14}$ and $2.7 \times 1 0^{- 15}$ , respectively. Solubilities (mol dm $^{- 3}$ ) of the salts at temperature $T$ " are in the order

$MX > M X_{2} > M_{3} X$

$M_{3} X > M X_{2} > MX$

$M X_{2} > M_{3} X > MX$

$MX > M_{3} X > M X_{2}$

MX : $K_{s p} = S^{2} = 4 \times 1 0^{- 8}$
$\Rightarrow S = 2 \times 1 0^{- 4}$
$M X_{2} : K_{s p} = 4 S^{3} = 3.2 \times 1 0^{- 14} \Rightarrow S = 2 \times 1 0^{- 5}$
$M_{3} X : K_{s p} = 27 S^{4} = 2.7 \times 1 0^{- 15} \Rightarrow S = 1 0^{- 4}$
Order of solubility is $MX > M_{3} X > M X_{2}$

Q. Solubility product constant ( Ksp​ )of salts of types MX1​,MX2​ and M3​X at temperature -T are 4.0×10−8,3.2×10−14 and 2.7×10−15, respectively. Solubilities (mol dm−3 ) of the salts at temperature T" are in the order

MX>MX2​>M3​X

M3​X>MX2​>MX

MX2​>M3​X>MX

MX>M3​X>MX2​