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What is the concentration of x2- in a 0.150 M solution of the diprotic acid H,X ?
For H2X
, K2 = 4.5x10-6 and K, -1.2x10-11.
(A) 9.9x10-8 M
(B) 2.0 x10-9 M
(C) 8.2 x10-4 M
(D) 1.2x10-11 M
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Answer:
1.2×10-11M is the answer
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