pH of a saturated solution of C a O H 2 is 9 . The solubility product K s p of C a O H 2 is:

Question

pH of a saturated solution of C a O H 2 is 9 . The solubility product K s p of C a O H 2 is:, 0.5 × 10 - 15, 0.25 × 10 - 10, 0.125 × 10 - 15, 0.5 × 10 - 10

MARKS App · Accepted Answer

C a O H 2 ⇌ C a + 2 S + 2 O H - 2 S p H of saturated solution = 9 p H = 9 , H + = 10 - 9 Hence O H - = 10 - 14 10 - 9 = 10 - 5 2 s = 10 - 5 , s = 10 - 5 2 k s p for C a O H 2 ⇒ 4 s 3 ⇒ 4 × 10 -5 2 3 = 10 -1 5 2 = 0.5 × 10 - 15

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