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AfilCa [17]
3 years ago
8

At 25 °C, only 0.0410 0.0410 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the K sp Ksp of the salt at 25 °

C? AB 3 ( s ) − ⇀ ↽ − A 3 + ( aq ) + 3 B − ( aq ) AB3(s)↽−−⇀A3+(aq)+3B−(aq)
Chemistry
1 answer:
Agata [3.3K]3 years ago
4 0

<u>Answer:</u> The solubility product of the given salt is 7.63\times 10^{-5}

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Moles of salt = 0.0410 mol

Volume of solution = 1.00 L

Putting values in above equation, we get:

\text{Molarity of solution}=\frac{0.0410mol}{1.00L}=0.0410M

The given chemical equation follows:

AB_3(s)\rightleftharpoons A^{3+}(aq.)+3B^-(aq.)

1 mole of the AB_3 salt produces 1 mole of A^{3+} ions and 3 moles of B^- ions

So, concentration of A^{3+}\text{ ions}=(1\times 0.0410)M=0.0410M

Concentration of B^{-}\text{ ions}=(3\times 0.0410)M=0.123M

Expression for the solubility product of  will be:

K_{sp}=[A^{3+}][B^-]^

Putting values in above equation, we get:

K_{sp}=(0.0410)\times (0.123)^3\\\\K_{sp}=7.63\times 10^{-5}

Hence, the solubility product of the given salt is 7.63\times 10^{-5}

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