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Unformatted text preview: 8 M Sr(OH) 2 d. 5x107 M HCl 5. Consider the diagram below: At approximately what pH(s) do(es) the zwitterion represent about 25% of the total species in solution? a. 2 b. 6 c. 10 d. 2 and 10 6. The K a of HSO 4is 1.2x102 . For which of the solutions below would [SO 4 2] be closest to K a ? a. .01 M H 2 SO 4 b. .1 M H 2 SO 4 c. 1 M H 2 SO 4 d. 10 M H 2 SO 4 7. For which of the solutions below does solving the pH NOT require knowledge of the concentration(s) of the specie(s) in solution? a. 0.45 mM H 3 AsO 4 b. 0.9 M Na 2 CO 3 c. 3.3333 M KHSO 3 d. 2 M NH 3 8. A weak polyprotic acid, H 3 A has pK a s of 3, 7 and 11. If you dissolved 1 mole of Na 3 A in 2,500 mL of water, what would be the resulting pOH? a. 3.7 b. 1.7 c. 9 d. 5 e. 5.7...
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This note was uploaded on 09/17/2011 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas.
 Spring '07
 Holcombe
 Solubility

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