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 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)