SI
10/4/15
CHEM 177
EXAM 2 REVIEW
Dr. Jenks
Lauren D.
3.5 g Mg(NO3)2 (aq) + 4.5 g NaOH (aq)
1) Balanced Equation?
2) Limiting Reagent?
3)Theoretical Yield?
4) Actual Yield if 83% yield?
5) Precipitate?
6) Net ionic equation?
4.5 ml 0.3 M HCl in 72 ml of water
7) Solvent? Solute?
8) Molarity of solution? (HCl is 1.013g/ml)
9) pH of solution?
pOH?
[OH]?
10) Strong Acids: (list the 7 molecules)
11) Weak Acids (list examples):
13) Strong Bases: (what 2 categories of molecules?)
14) Weak Bases (list examples):
15) Strong electrolytes?
16) Conjugate acid of:
H2O
NH3
17) Conjugate base of:
H2SO4
H2O
18) Add the electrons:
Fe2+Fe3+
AlAl3+
H22H+
Cu2+Cu
NaOH
HCl
Sn2+Sn
Zn2+Zn
HNO3
SI
10/4/15
CHEM 177
EXAM 2 REVIEW
Dr Jenks
Lauren D
19) Balance a reaction with Cu being oxidized to Cu2+ and Al3+ being reduced to Al.
Include electrons(Use the half reactions from #18, but PAY ATTENTION TO RXN DIRECTION)
20) Is this reaction possible? Why or why not?
21) Write the oxidation numbers:
Total:
CO2
CH4
H2O2
Actual:
O2
MgCl2
H2SO4
HNO3
22) What is reduced? What is oxidized?
````’’’’’```SO2 +
MnO4- +
Cr2O72- 
SO42- +
Cr3+
H2SO4 
Mn2+ +
HSO4-
23) Potential energy of an object with a mass of 65g that is 7m high
24) Kinetic Energy of a 49.7mg ball that is 382 cm high and moving 2.44 m/sec.
25) You have a 2L vesicle with a 0.3M NaCl solution in it next to a 4L vesicle with a 0.5 M
NaCl solution in it. A semipermeable membrane that only water can flow through separates
the vesicles. Which way will the water flow, and how much will flow?
26) The electrostatic energy between two positive molecules will be_______ (+/-)
two negative
_______(+/-)
a positive and a negative
________(+/-)
27) Will exothermic reactions ALWAYS be spontaneous? Why or why not?
28) Add signs:
work done on system:___w
work done by system:__w
heat released by the system: ___q
heat absorbed by the system:___q
29) List state functions:
30) 1cal=
1 LAtm=
Avagadros number=
Limiting reagents, Theoretical yield, Percent yield, Solution, solvent, solute, Molarity, Electrolytes, Solubility and precipitation,
Spectator ions, Complete ionic vs net ionic equations, Acids, Bases, Conjugates, pH, pOH, reduction, oxidization, balancing half
reactions, osmosis, state changes, Kinetic Energy, Potential Energy, Delta E, spontaneity