Practice_exam_F05

Practice_exam_F05 - Review Problems F05 1 d 2 0 -1 b 3 N ln...

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1 Review Problems – F05 2 d
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3 b 0 1 β 4 b ln t o N kt N ⎛⎞ = − ⎜⎟ ⎝⎠ kt to N Ne = 1 2 1 2 0.693 0.693 t k k t = =
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5 b ln t o N kt N ⎛⎞ =− ⎜⎟ ⎝⎠ kt t o N e N = 1 2 1 2 0.693 0.693 t k k t = = t = 40 yrs 0.693 40 28.5 0.378 37.8% yrs yrs t o N e N −× == = 6 a 35 17 Cl 17 protons 17 electrons 18 neutrons () 35 17 27 16 2 2 12 17 18 17 34.9595 17 1.00728 18 1.00867 17 0.00055 =-0.32967 E 0.32967amu 1.6606 10 9 10 = 35 1.41 10 / pne C l m Kg m s nucleon J nucleon −− ++ Δ= − × + × Δ× × × ×
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7 b 8 Coordination Compound Coordination Compound Simple Ligands 2 : H O 3 : H N : Cl All ligands are lone-pair donors (Lewis bases) () 3 2 6 Fe H O + ⎡⎤ ⎣⎦ 26 4 3 Fe Ar s d 4s 3d 3 Fe Ar + Hybridization produces six new orbitals 4p 3d 4s 4d
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9 a [Co(NH 3 ) 4 Cl 2 ] + III 10 d () 2 3 5 Co NH CN +
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11 b 12 c
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13 a : 0.172 0.172 : HAc H Ac init M chng x x x equil +− + ZX YZZ [ ][ ] 53 6.31 10 x=3.29 10 0.172 xx x −− ×= × 4.20 10 a H Ac K HAc ⎤⎡ ⎦⎣ == ( ) 3 pH=-log 3.29 10 2.48 14 c log a Ac pH pK HAc =+ What is the effect of dilution ? What is the effect of dilution ?
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Practice_exam_F05 - Review Problems F05 1 d 2 0 -1 b 3 N ln...

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