Difference between revisions of "Solution Calorimetry"

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(Created page with "'''Calorimetry Lab...report (Chem 312)''' The following report will consist of a collection of graphs and handwritten calculations. ::: KOH or NaOH (s) --> NaOH (aq) (1)...")
 
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===Experimental data===
 
===Experimental data===
 
:1) Plot out (with axes labels in Igor) time vs temp data for the three reactions on a single graph.
 
:1) Plot out (with axes labels in Igor) time vs temp data for the three reactions on a single graph.
:2) As will be discussed in lab, annotate a single data set (on a different graph using a layout) to show how Tf  and Ti were determined, and hence T.
+
:2) As will be discussed in lab, annotate a single data set (on a different graph using a layout) to show how Tf  and Ti were determined, and hence ΔT.
:3) Show calculations to (hand written) to determine H1, H2, and H3.
+
:3) Show calculations to (hand written) to determine ΔH<sub>1</sub>, ΔH<sub>2</sub>, and ΔH<sub>3</sub>.
+
 
 
===Theoretical (hand written)===
 
===Theoretical (hand written)===
 
: 1) Use the ∆H_f^oto calculate theoretical values of H1, H2, and H3.
 
: 1) Use the ∆H_f^oto calculate theoretical values of H1, H2, and H3.

Revision as of 13:31, 16 October 2020

Calorimetry Lab...report (Chem 312)

The following report will consist of a collection of graphs and handwritten calculations.

KOH or NaOH (s) --> NaOH (aq) (1)
KOH or NaOH (s) + HCl (aq) --> NaCl (aq) + H2O (l) (2)
KOH or NaOH (aq) + HCl (aq)--> NaCl (aq) + H2O (l) (3)

Experimental data

1) Plot out (with axes labels in Igor) time vs temp data for the three reactions on a single graph.
2) As will be discussed in lab, annotate a single data set (on a different graph using a layout) to show how Tf and Ti were determined, and hence ΔT.
3) Show calculations to (hand written) to determine ΔH1, ΔH2, and ΔH3.

Theoretical (hand written)

1) Use the ∆H_f^oto calculate theoretical values of H1, H2, and H3.
2) Using the concept of Hess’ Law, use the theoretical values to show that H2 = H1 + H3.

Conclusion

1) Comment of the quality of the experimental data.
2) Indicate whether your experimental data “follows” Hess’ Law.
3) Suggest sources of error in the experimental setup.