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A mixed alkali sample requiring 15.0ml of 0.100 F HCl to reach the first end point and an additional 20.0ml to reach the second end point, containing (A) mmol of (B) and (C) mmol of (D). ph = pka1 was reached after (E) ml of HCl had been added, ph = pka2 after (F)ml.
What are the missing parts?
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