Chemistry 3202 Assignment

Enthalpy (heat) of Solution Measurement

Instructions

Find your name and the two compounds you are assigned to work with in the table below.
Note mass range (in grams) for each solute and the mass range (in grams) for the water to use in the calorimeter.
Go to the link (below the table) for the simulation of a simple (coffee cup like) calorimeter.
Select a solute compound you have been assigned.
Adjust the amounts in the calorimeter simulator to a value in the range you have been assigned/allowed.
Record the actual values you used. (Record the initial and final temperatures and masses.)
Calculate the enthalpy of solution from your results.
Repeat steps 3 to 5 for the other solute (Use reset button.)
Write it up (for both solutes) and hand it in!

(Hint: look at notes from the demos done in the lab, and consider the points below.)

Include the balanced equation for the solution process.
Include your collected data.
Show formulas, units, significant digits, etc.. for your calculations (including molar mass determination)

		First Compound			Second Compound
Student	Solute	Mass solute	Mass Water	Solute	Mass Solute	Mass Water
Lisa S	lithium chloride	3.0-3.9	100-115	sodium nitrate	5.0-5.9	120-135
Scott A	ammonium nitrate	5.0-5.9	120-135	sodium carbonate	4.0-4.9	70-95
Jake W	potassium chloride	4.0-4.9	70-95	magnesium nitrate	3.0-3.9	120-135
Sam G	ammonium chloride	3.0-3.9	100-115	zinc sulfate	5.0-5.9	100-115
Zach L	sodium carbonate	5.0-5.9	70-95	lithium chloride	4.0-4.9	120-135
Hailey S	calcium chloride	4.0-4.9	70-95	ammonium nitrate	3.0-3.9	120-135
Jody H	sodium hydroxide	3.0-3.9	100-115	potassium chloride	5.0-5.9	70-95
Christine R	magnesium nitrate	5.0-5.9	120-135	ammonium chloride	4.0-4.9	100-115
Beth B	calcium nitrate	4.0-4.9	70-95	sodium chloride	3.0-3.9	120-135
Myah H	sodium nitrate	3.0-3.9	100-115	sodium carbonate	5.0-5.9	70-95
Cecily S	sodium carbonate	5.0-5.9	120-135	sodium hydroxide	4.0-4.9	100-115
Melody S	zinc sulfate	4.0-4.9	70-95	magnesium nitrate	3.0-3.9	120-135
Ian R	lithium chloride	3.0-3.9	100-115	calcium nitrate	5.0-5.9	70-95
Candace G	ammonium nitrate	5.0-5.9	120-135	sodium nitrate	4.0-4.9	100-115
Bethany C	potassium chloride	4.0-4.9	70-95	sodium carbonate	3.0-3.9	120-135
Gage A	zinc sulfate	3.0-3.9	100-115	magnesium nitrate	5.0-5.9	70-95
Taylore A	ammonium nitrate	5.0-5.9	120-135	lithium chloride	4.0-4.9	100-115
Simone R	sodium carbonate	4.0-4.9	70-95	ammonium nitrate	3.0-3.9	120-135
Ashley B	sodium hydroxide	3.0-3.9	100-115	potassium chloride	5.0-5.9	70-95
Travis R	magnesium nitrate	5.0-5.9	120-135	ammonium chloride	4.0-4.9	100-115
Jonathan B	sodium carbonate	4.0-4.9	70-95	sodium chloride	3.0-3.9	120-135
Micheal W	zinc sulfate	3.0-3.9	100-115	calcium chloride	5.0-5.9	70-95
Shelby W	sodium carbonate	5.0-5.9	120-135	sodium hydroxide	4.0-4.9	100-115

Here is the link to the colorimeter simulation (close the instruction popup window to see the simulation):

http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/thermochem/heat_soln.html

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