Quiz #6, Nov 3, 2014
A molecule that appears red in solution appears yellow under a black light (i.e. a light that emits
(a) On the axis below, use a solid line to draw a hypothetical absorbance spectrum for t
Quiz #5, Oct 24, 2014
Consider the titration of HCl with 25.00 mL of 0.2397 F triethanolamine (pK b = 6.24). When
11.00 mL of acid are added, the pH was found to be 7.95. What is the molarity of the acid?
HCl is a strong aci
Quiz #8, Dec 1, 2014
Ag+ + e- Ag
AgBr(s) + e- Ag + BrAgCl(s) + e- Ag + Cl-
+0.197 (satd KCl)
Sn2+ + 2 e- Sn
Sn4+ + 2 e- Sn2+
+0.140 (1 F HCl)
The right half of an electrochemical cell has t
Quiz #7, Nov 21, 2014
(A) A packed GC column has 5000 plates. What is the half peak width, tw1/2 for a peak with a
retention time of 3.4 min? Report your answer in seconds
N = 5.55 (tr)2 / (tw)2
Dont forget units!
Quiz #4, Oct 17, 2014
What is the pH of the solution following the addition of 50.00 mL of 0.225 F NaOH to
500.0 mL of a 0.200 F Tris buffer at an initial pH of 8.00? The pKb of Tris is 5.93.
Looking at the struct