In a saturated solution of the sparingly soluble strong electrolyte AgIO3 (molecular mass = 283) the equilibrium which sets isAgIO3 s ⇌ Ag+ aq + IO3- aqIf the solubility product constant KSP of AgIO3 at a given temperature is 1.0 × 10-8, what is the mass of AgIO3 contained in 100 mL of its saturated solution ?
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a
28.3 × 10-8 g
b
28.3 × 10-3 g
c
1.0 × 10-7 g
d
1.0 × 10-4 g
answer is B.
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Detailed Solution
AgIO3 s ⇌ Ag+ aq + IO3- aqLet the solubility of AgIO3 be SKSP = Ag+ IO3- 1.0 × 10-8 = S2 S = 10-4 mol/litre = 10-4 × 2831000 × 100 = 283 × 10-5 = 2.83 × 10-3 g/100 mL