Acids and pH Pre-Lab Exercise
A solution shows the following colors with the stated indicators:
Use the table in the experimental procedure
Chem 173 Summer 2011
R = 8.314 J/(K mol) = 0.08206 L atm/(K mol)
I. Short Answer and Problems (85 points) Be sure to explain all answers COMPLETELY and
CONCISELY, and show all work for calculations.
1. Listed are some acids, bases and salts
Solubility Product of Lead (II) Iodide in KNO3(aq)
Table 1a: Beer's Law Data
For Standard [I-] at 455 nm
Beer's Law Slope (M-1)
Beer's Law Intercept
Table 2: Stock Solutions
Stock [Pb2+] (M)
Stock [I-] (M)
A so ac
The Ksp of PbI2 can be calculated from the following data (similar to Tube #4 data):
5.00 mL of 0.0120 M Pb(NO2)2 are mixed with 5.00 mL 0.0300 M KI. A yellow precipitate
of PbI2 forms. The precipit
Lecture Problems for Thermo
The reaction, H2(g) + Cl2(g) 2HCl(g) has
a Kc = 2.57 x 1033. Calculate Gof for HCl.
(answer = 95.3 kJ/mol)
The Gof for N2O4(g) is 99.8 kJ/mol and for
N2O5(g) is 117.1 kJ/mol. For the following
reaction, 2N2O5(g) 2N2O4(g) + O2(g
Electrochemistry Prelab Exercise
An electrolysis apparatus was set up connecting three cells in a series. In one cell 42.51
mL of hydrogen gas were formed at the cathode. The temperature was 21.5 C and the
vapor pressure of water at this tempe
I. Balance the following redox reactions.
II. Circle the Oxidizing Agent; Underline the reducing Agent.
III. Identify the number of electrons gained/lost for each reaction
S8 + HNO3
I2 + HNO3
MnO4 + SO32
I + NO2
CHEM 173 General Inorganic Chemistry III
Instructor: David Phippen, Ph.D.
Office: 2822 (2800 Building)
Phone: (206) 546-4572
8:30 9:20 M, T, W
10:30 11:20 Th, F
and by appointment
33, S: 32/
Chem 173 EXAM II ' Name 32% I '
Spring 2010 - 50 pts
This exam is worth a total of 50 points. Be sure to answer questions completely. Indicate clearly if
work is continued on the back. Partial credit can be given only if all work is shown! If I
Chem 173 ' EXAM I Name Q.N- \
Spring 2010 ' 50 pts
This exam is worth a total of 50 points. Be sure to answer questions completely. Partial credit can be
given only if all work is shown! If I cant read it, I cant grade it!
1. Consider the following data o
Strong acids donate practically all their Hs.
100% ionized in water
[H3O+] = [strong acid]
[X] means the molarity of X
Weak acids donate a small fraction of their Hs.
Most of the weak acid molecules do n
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Chem 173 Summer 2011 Name: K EV '
Exam #2 R = 8.314 J/(K incl) = 0.08206 L atm/(K mol)
1. Short Answer and Problems (85 points) Be sure to explain all answers COMPLETELY and
CONCISELY, and show all work for calculations. '
1. Listed are some acids, bases