Member since August 3, 2010

bjbaltze

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bjbaltze
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Tue 3 Aug, 2010 10:16 pm - Time, s 0 25 50 75 100 150 200 250 Set 1 [A], M 1.00 0.78 0.61 0.47 0.37 0.22 0.14 0.08 Set 2 [A], M 1.00 0.75 0.50 0.25 0.00 Set 3 [A], M 1.00... (view)
Tue 3 Aug, 2010 10:15 pm - A plausible reaction for the production of ethylene glycol is: 2CO(g) + 3H2(g) ----- CH2OHCH2OH(l) These thermodynamic properties of CH2OHCH2OH(l) at 25⁰C are given: H⁰f = -387.1 kJ/mol... (view)
Tue 3 Aug, 2010 10:14 pm - Two electrochemical cells are assembled in which these reactions occur: V2+ + VO2+ + 2H+ ---------- 2V3+ +H2O E⁰cell = 0.616 V V3+ + Ag+ + H2O ----------- VO2+ + 2H+ +Ag(s) E⁰cell =... (view)
Tue 3 Aug, 2010 09:59 pm - The following equilibrium data are given. HgO(s) ---> Hg(g) + ½ O2(g) ∆G⁰= -12.19 kJ at 800 K HgO(s) ---> Hg(l) + ½ O2(g) ∆G⁰= +4.25 kJ at 800 K, ∆G⁰=-2.83 kJ at... (view)
Tue 3 Aug, 2010 09:58 pm - A test for completeness of electrodeposition of Cu from a solution of Cu2+(aq) is to add NH3(aq). A blue color signifies the formation of the complex ion [Cu(NH3)2]2+ (Kf = 1.1x10^13). 250.0 mL of... (view)
Tue 3 Aug, 2010 09:56 pm - The concentrations of a saturated solution of I2 in water is 1.33 x 10^/3 M. Also, I2 -------- I2(CCl4), K = [I2(CCl4)]/[I2(aq)] = 85.5 A 10.0-mL sample of saturated I2(aq) is shaken with... (view)
Tue 3 Aug, 2010 09:54 pm - The unit curie is defined as a disintegration rate of 3.7 x 10^10 dis/s. What mass of 90Sr, with a half-life of 29 y, is required to produce 1.00 millicurie of radiation? (view)
 
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