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Material Type: Exam; Professor: Rettich; Class: General Chemistry; Subject: Chemistry; University: Illinois Wesleyan University; Term: Fall 2008;
Typology: Exams
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Chem 201 Name (PRINT!) KEY
Final Exam December 9, 2008
Hybrid atomic orbitals named are used by the central atom when it has 3
regions of electron density in the Lewis dot diagram.
An aldehyde would react with dichromate ion to yield the organic functional group called
(Be as specific as possible.)
A ketone would react with sodium borohydride to yield the organic functional group
(Be as specific as possible.)
63
2 + has protons, electrons, and neutrons.
T, V, E, and H are examples of functions, while q and w are
examples of functions.
The quantum number n is called the quantum number; one of the names
of l is the quantum number.
Oxides of metalloids are most likely to dissolve in solution described as
(acidic/basic/either acidic or basic).
The energy released when a neutral gas phase atom gains an electron is called its
Of the salts LiF, NaCl. and KBr, the one having the largest value for lattice energy would
be.
Sr 3 (PO 3 ) 2
W(ClO 3 ) 3
Hg 2 (C 2 H 3 O 2 ) (^2)
H 3 AsO 3 (aq)
Chem 201 A Final Exam, p 2 Name
O
OH
HO
NH 2
O
methyl butanoate
cyclohexanone
Joules has
Chem 201 A Final Exam, p 4 Name
acceptable Lewis dot diagram, using o or x to represent every valence electron. If
resonance occurs, only one of the forms need be shown. Then indicate the electronic
geometry around the central atom, and the overall molecular geometry.
Hybrid orbitals for S =
Electronic geometry =
Molecular geometry = b
TeF 5
Hybrid orbitals for Te =
Electronic geometry =
Molecular geometry =
N = A = S =
Hybrid orbitals for I =
Electronic geometry =
Molecular geometry =
Chem 201 A Final Exam, p 5 Name
molar enthalpy change is termed
ΔHf
o )
(b) Write the balanced combustion reaction of one mole of butane gas with oxygen gas to
form carbon dioxide gas and liquid water.
The molar enthalpy change of combustion of butane
o is -2878 kJ/mole.
The
ΔHf
o of carbon dioxide gas is -393.5 kJ/mole, and the
ΔHf
o of liquid water
is -285.83 kJ/mole. Calculate the value of
o for butane gas.
Chem 201 A Final Exam, p 7 Name
results in the form of a table is strongly encouraged. Assuming complete reaction, how
many moles remain at the end of the reaction for each reactant and each product when
40.00 g of phosphorous, 75.00 g of barium hydroxide, 20.00 g of water, and 15.00 g of
sulfuric acid are reacted according to the reaction:
2 P 4 + 3 Ba(OH) 2 + 6 H 2 O + H 2 SO 4
3 BaSO 4 + 6 H 3 PO 2 + 2 PH 3
Chem 201 A Final Exam, p 8 Name
photon associated with this transition is absorbed (absorbed/emitted).
Calculate the wavelength, in nm, of this photon.
heat 4.18 J/g K) the cup contained were both initially at a temperature of 21.
o C.
A 50.0 g piece of lead, initially at a temperature of 175.
o C, was added to the water and
cup. The final common temperature was 28.
o C. What is the specific heat of lead?