answers to review exam_2

answers to review exam_2 - b. pH at 0 time: 13.40 half...

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REVIEW EXAM II 1. e 2. c 3. c 4. a 5. d 6. conjugate acid – H 3 PO 4 ; conjugate base – HPO 4 2- 7. a. HCO 3 - (aq) + H 2 O H 2 CO 3 (aq) + OH - (aq) b. Zn(H 2 O) 4 2+ (aq) Zn(H 2 O) 3 OH + (aq) + H + (aq) c. F - (aq) + H + (aq) HF (aq) d. HNO 2 (aq) H + (aq) + NO 2 - (aq) e. NH 3 (aq) + H + (aq) NH 4 + (aq) 8. yes; pH = 3.46 9. 0.017 10. a. pH at 0 –time: 8.17 half – neutralization: pH = 3.16 equivalence: 2.10
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Unformatted text preview: b. pH at 0 time: 13.40 half neutralization: pH = 12.99 equivalence: 7.00 c. pH at 0 time: 1.81 half neutralization: pH = 3.16 equivalence: 8.07 11. a. -1 b. Ba[Cr(H 2 O) 3 (C ) 3 ] 2 c. No d. Yes e. Yes 12. at pH = 3, ratio = 1 x 10-11 ; at pH = 11, ratio = 1 x 10 21 more stable at the basic pH...
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