Professor: Sarah El Cheikhali
Self actualization: Does it depend
on social and personal factors?
Self actualization represents experiencing and reaching the individuals full potential and
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CHEM3160 Midterm Exam 1, 09/23/15
Do not turn the page over until you are instructed to do so!
1. Please remember to sign all pages of the answer sheet.
2. There are three problems worth 100 points altogether. The score on this test counts for
Using specic heat capacity tontl heat
Read this explanatim
Calculate the energy required to heat 513.03 ofetiianol om 103C to 233 C . FEW"?-
Assume lite specic heat capacity of ethanol under these conditions is 2744. .- g
. Be sure youranswer has the c
You can solve this problem by Ieaming to recognize four basic types of chemical reaction:
1. In a combination reaction two or more reactants form one product.
' For additional explanation
see your textbook:
The rst reactio
Since W turns out to be positive (meaning the energy of the system increases), it must he that work is done on the system by the
piston, that is, the piston moves in, compressing the system. This answers the third question in the table.
Interconirerting pressure and force Read W5 explanation
A cylinder measuring 8.7m wide and lcm high is lled with gas. The piston is pushed
down with a steady force measured to be 9.3le .
Calculate the pressure of the gas i
Gayle-"null", an: jun."
First, you need to understand the two dinerent ways in which energy can ow into or out of the MN:
Section 8.4: Heat
- Energy can now from the system to the water bath, or vice versa, as heat. If heat ows out of the
Identifying phase transitions on a heating curve
A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a
steady rate and the temperature recorded as time passes. Here is a graph ofthe results:
temperature fCl 1
Calculating pressure-volume work
Clidt on the following for more
A mixture of krypton and hydrogen gas is compressed from a volume of 61.01. to a volume 'lntdeuctiDn 10 ThermodynamiCS'.
of 41.01. ,while the pressure is held constant
common chemical groups
*Ueed when drawing a condensed chemical structure.
3.31445] 11101 'K Multiply by the value of R in units that you want, and
w=(soo.ooL-atm)- _ _ _ ,
0.08205 74L alzn 'rnol-l 'K-l divide by the value of R In units that you don t want.
Cancel units, and use the calculator to multiply and
4 divide. Also
Writing a standard fonnation reaction
Read this Eilplanation
1.f'll'n'te a balanced chemical equation iortile standard iormation reaction oisolid irontlll
The standam' limitation reaction oia chemical compound h
Oct. 28, 2015
Procedure for Enthalpy Change Lab
1. Obtain a small Styrofoam cup and a thermometer clip from the side shelf.
2. Take the Styrofoam cup to the hydrogen peroxide repipet set to 50.0 mL. Obtain a
portion of the solution.
Sept. 2, 2015
Procedure for Determination of Density Lab
1. Receive two samples, one a larger sample and the other a smaller sample, of the same
unknown metallic element.
2. Place a clean 50-mL beaker on the analytical balance and re
Jan. 27, 2016
Procedure for Enthalpy of Hydration Lab
1. The anhydrous magnesium sulfate sample should be between 7 to 8 grams. The mass of
the hydrate (MgSO4 x 7H2O) sample should be between 15.3 and 15.4 grams.
2. After measuring the anhyd
March 2, 2016
Procedure for Acid Dissociation Constant Lab
1. Obtain an unknown acid from the stockroom, and weigh about 0.1 grams into a clean
250 mL Erlenmeyer flask. Add enough water to dissolve the acid, and then three drops
Feb. 3, 2016
Procedure for Freezing Point Depression Lab
1. Obtain a short wide test tube, a one-hole stopper, a half inch stirring bar, a Vernier Lab
Pro, a temperature probe, and a Palm Pilot from the stockroom. Also obtain a magne
Feb. 17, 2016
Procedure for Kinetics of a Chemical Reaction Lab
1. Place eight six inch test tubes in a rack, and then using the stock solution containing 5.00
x 10-4 M of iodine in 0.002 M I2, prepare a series of solutions containin
Nov. 11, 2015
Procedure for Gas Constant Lab
1. Add 50 mL of deionized water to the 100 mL graduated cylinder. Use a repipet to add 10
mL of 6 M HCl solution to prepare the 1 M HCl solution.
2. Pour the solution back and forth betwee
Sept. 23, 2015
Procedure for Preparation of Alum from Aluminum Metal Lab
1. Obtain 2.0 grams of aluminum foil and record its weight on to the data sheet.
2. Cut or tear the aluminum into small 1 cm pieces.
3. Put the pieces into a 25
Analysis of Monel
September 24, 2015
The purpose of this experiment was qualitatively and quantitatively analyze a 1.4747g
sample of Monel alloy. Selective precipitation and ion exchange chromatography
were used to determi
Acid Base Titration Curves
September 3, 2014
The purpose of this experiment is to create an understanding of titration curves by
titrating a standardized strong base against a strong acid, a strong base against a weak
Recombinant DNA Technology
Isolates and amplifies
specific sequences of DNA
incorporates them into vector DNA molecules
Resulting recombinant DNA
is propagated and amplified (cloned)
in organisms such as E. coli
Chapter 8: How Cells Make ATP: Energy-Releasing Pathways
1. The splitting of molecules into smaller components is referred to as:
2. Which of the following statements concerning anab
Chapter 14: Gene Regulation
Chapter 14 practice test questions
1. Regulation of gene expression can be accomplished by controlling:
the activity of a protein product.
the amount of mRNA that is available.
the rate of translation of mRNA.
Solomon Chapter 14 Gene Regulation Worksheet
1. Mechanisms that regulate gene expression include:
2. _ is the most efficient mechanism
of gene regulation in bacteria.
3. _ are genes that encode essential
protein that are in constant use.
4. A gene complex
Chapter 13: Gene Expression
Beadle and Tatum irradiated Neurospora and initially grew the mutant strains on
complete medium. How were they able to determine what type of mutation each
What conclusions did Beadle and Tatum
Chapter 10: Chromosomes, Mitosis, and Meiosis
Solomon chapter 10
1. A bacterial chromosome consists of:
linear DNA molecule many times larger than the cell.
circular DNA molecule many times larger than the cell.
circular DNA molec