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Outline:
 1.16) Which of the following half-reactions is not correct?A) Mg →Mg2+ + 2e-B) Cu+ + e- → CuC) Pb2+ + e- → Pb3+D) Fe3+ + 2e- → Fe+E) Ag → Ag+ + e-Answer: C
演講者: 洪國明
觀看 (319), 討論 (0)
演講日期: 2015-06-07
上架時間: 2015-06-08
上傳者: energy4104
00:24
Outline:
 1.Slide 17
演講者: 洪國明
觀看 (364), 討論 (0)
演講日期: 2015-06-07
上架時間: 2015-06-08
上傳者: energy4104
01:36
Outline:
 1.18) How many electrons are transferred in the following reaction?    6 Br- (aq) + Cr2O72- (aq) + 14 H+ (aq) → 2 Cr3+ (aq) + 7 H2O + 3 Br2 (l)A) 1 B) 2 C) 3 D) 6 E) 14Answer: D
演講者: 洪國明
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演講日期: 2015-06-07
上架時間: 2015-06-08
上傳者: energy4104
00:52
Outline:
 1.19) Identify the location of reduction in an electrochemical cell.the cathode B) the anode C) the salt bridge D) the electrolyteAnswer: A
演講者: 洪國明
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演講日期: 2015-06-07
上架時間: 2015-06-08
上傳者: energy4104
00:26
Outline:
 1.20) (Refer to Table A) Which of the following is the best oxidizing agent?Mg2+ B) Fe3+ C) Cu2+ D) F- E) Cl2Answer: E
演講者: 洪國明
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演講日期: 2015-06-07
上架時間: 2015-06-08
上傳者: energy4104
00:33
Outline:
 1.Give the equation for a saturated solution in comparing Q with Ksp.A) Q > KspB) Q ≠ KspC) Q < KspD) Q = KspE) none of the aboveAnswer: D
演講者: 洪國明
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演講日期: 2015-05-03
上架時間: 2015-05-04
上傳者: energy4104
00:24
Outline:
 1.2) Determine the pH of a solution that is 0.15 M HClO2 (Ka = 1.1 x 10-2) and 0.15 M HClO (Ka = 2.9 × 10-8).4.18 3.55 9.82 1.39 12.55Answer: D
演講者: 洪國明
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演講日期: 2015-05-03
上架時間: 2015-05-04
上傳者: energy4104
01:39
Outline:
 1.3) Calculate the pH of a buffer that is 0.225 M HC2H3O2 and 0.162 M KC2H3O2. The Ka for HC2H3O2 is 1.8 × 10-5.4.74 9.11 9.26 4.60 4.89Answer: D
演講者: 洪國明
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演講日期: 2015-05-03
上架時間: 2015-05-04
上傳者: energy4104
00:34
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