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e File Edit View History Bookmarks People Window Help Masteringchemistry: Homework 17 Secure https://session masteringchemistry.com/myct/i ssignment ProblemID 79390101&offset; prev CHM2046, Spring 2017 Period 5 Homework 17 Item 1 previous l 1 of 3 Item 1 different number of significant figures than required for this part. 22.0 mL of 0.125 M diprotic acid (H2A) was titrated with 0.1021 M KOHL The acid ionization Part E constants for the acid are Ka 5.2 x 10 5 What is the pH at the first equivalence point? and Kaa 3.4 x 10 My Answers Give Up Answer Requested Feedback Continu Can square root of 10 be 9.245 simplified? Water storage tanks are usually Ear We need now to get the total volume built on towers or placed on hilltops. Why?Explanation / Answer
pH = pKa + log[A-] / [HA]
at the first equavalence point
pH = pKa
so
pH = -log [Ka] = -log[5.2x10-5] = 4.284
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