Chm 204 Experiment 10 Enthalpy of Neutralization
Names of members of the group *
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Enter your CU e-mail address
Format: ABC12345@creighton.edu -- Be careful! This is how you will receive the evaluation of your on-line report.
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Enter your partner's e-mail address
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Enter your section *
Lab Station *
(Enter 1A, 1B, 2A, 2B, etc. Leave no space between number and letter!
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Numbers that are not overly small or large can be entered directly (for example, 0.00448). Numbers larger than 1000 or smaller than 0.001 should be entered as exponentials. Exponentials must be entered in the ONLY format recognized by Microscoft Excel. If your value has to be re-entered for grading, you will receive a 1 pt penalty for each occurance. *
Example of an acceptable entry: 2.347E-6 (Note: No spaces!)
Did you use NaOH(aq) or KOH(aq)? *
1. (1 pt) What is the exact volume of NaOH(aq) or KOH(aq) that you used?
Significant figures and units!
Your answer
2. (2 pts) How many moles of NaOH or KOH were used?
Significant figures and units!
Your answer
Did you use HCl(aq) or HNO3(aq)? *
3. (1 pt) What is the exact volume of acid that you used?
Significant figures and units!
Your answer
4. (2 pts) How many moles of acid were used?
Significant figures and units!
Your answer
5. (1 pt) What was the limiting reagent?
6. (1 pt) Enter the initial temperature from graph.
Record temperature to the tenths place. Units for temperature can be written as oC.
Your answer
7. (2 pts) Enter the final temperature as calculated from the equation for the trendline and the appropriate time.
Record temperature to the tenths place. Units for temperature can be written as oC.
Your answer
8. (1 pt) What value for time did you use to calculate T(final) from the trendline equation?
Significant figures and units!
Your answer
9. (1 pt) What is the mass of your combined solution?
Significant figures and units! Density given in lab manual.
Your answer
10. (2 pts) What is q(cal) that you calculated?
Significant figures and units! Specific heat given in lab manual.
Your answer
11. (1 pt) What is q(rxn)?
Significant figures and units!
Your answer
12. (3 pts) What is delta-H for the reaction MOH(aq) + HX(aq) -> H2O + MX(aq)?
Significant figures and units!
Your answer
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