Question

Calculate the solubility of AX in pure water. The solubility product of AX is 2.5 x10-20.​

Answer 1

Answer:

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Explanation:

ANSWER

A

2

X

3

⟶2A

3+

+3X

−2

K

sp

=[A

3+

]

2

[X

2−

]

3

Let solubility of A

2

X

3

be S

∴ K

sp

=[2S]

2

[3S]

3

=108S

5

∴ 1.1×10

−23

=108S

5

∴ S

5

=

108

1.1×10

−23

=1×10

−25

∴

S=1.0×10

−5

mol/L