This preview shows page 1. Sign up to view the full content.
Unformatted text preview: S and 9.5x10-4 M H 2 S solution be more acidic, more alkaline, or the same as the solution in part (c)? Explain your answer in one or two sentences or equations. 3. Problem 5-2 (Benjamin). How much does the alkalinity change upon addition of 10-4 M of the following chemicals? Assume alkalinity is determined by titration to pH 4.7 and the water is initially at pH 7.5 due to the presence of an unknown mixture of weak acids and bases. Briefly explain your reasoning. a. i. HCl ii. NaOH iii. Na 2 CO 3 iv. NaHCO 3 v. CO 2 vi. NaH 2 Cit vii. Na 2 SO 4 b. Would answers to parts (iii) and (iv) be different, and if so how, if the water was inititally at pH 9.0? If the water was initially at pH 4.7?...
View Full Document
- Spring '11