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This 2 page Class Notes was uploaded by Zac Wood on Tuesday March 8, 2016. The Class Notes belongs to at Auburn University taught by in Summer 2015. Since its upload, it has received 22 views.
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Date Created: 03/08/16
CHEM 1040 SI 3/2/16 1. According to the Brønsted definition of _________________________ and a base is acids and bases, an acid is a a _________________________. 2. List the seven strong acids. (Everything else is weak!) 3. Rank the following acids in order of decreasing strength. a. HBrO , H2rO , HB3O 4 b. H O2 H S,2H Se 2 4. What is the pH of a 0.13 M HCl solution? 5. What is the pH of a 0.028 M NaOH solution? + + 6. Consider the reaction NH (aq) 4 H O(l) ⇌ N2 (aq) +H O (3q). 3 a. Label the acid, base, conjugate acid, and conjugate base. Draw arrows to connect the conjugate pairs. -5 b. Let’s assume the K for the forward reaction (as written) is 2.8×10 . Does this represent K oa K ? b c. If your answer to part (b) was K , calaulate K for thb reaction. If your answer to part (b) was K ,bcalculate K foa the reaction. d. What can we say about the relative strength of the conjugate base of a strong acid? What about the conjugate acid of a strong base? 2- 7. What is the conjugate acid of S ? 8. What is the conjugate base of HCN? 9. What is the conjugate base of H SO ? 2 4 10. The pH of a solution is 5.3. Calculate the concentration of hydroxide ions in the solution. -8 11. The K ofahypochlorous acid (HClO) is 3.5×10 . Calculate the pH of a 0.0075 M solution of HClO. What is the percent ionization of HClO?
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