K 1 and K 2 for oxalic acid are 6.5 × 1 0 2 - and 6.1 × 1 0 - 5 respectively. What will be [ H O - ] in a 0.01 M solution of sodium oxalate?

Question

K 1 and K 2 for oxalic acid are 6.5 × 1 0 2 - and 6.1 × 1 0 - 5 respectively. What will be [ H O - ] in a 0.01 M solution of sodium oxalate?, 9.6 × 1 0 - 6, 1.4 × 1 0 - 1, 1.28 × 1 0 - 6, 1.3 × 1 0 - 8

MARKS App · Accepted Answer

The hydrolysis of C 2 O 4 2 - is represented by C 2 O 4 2 - + H 2 O ⇌ H C 2 O 4 - + O H - K h = K w K 2 = 1.0 × 1 0 - 14 6.1 × 1 0 - 5 = x 2 0.01 So x = 1.28 × 1 0 - 6

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