writeuplab11 - Ann Dysart Chem 1310-L1 Preliminaries:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Ann Dysart Chem 1310-L1 Preliminaries: Objective: The purpose of the lab, “Thermochemistry and Hess’s Law”, was to use the properties of thermodynamics to understand Hess’s Law specifically. Using three different chemical reactions, Hess’s Law can be applied using the changes in enthalpy of the three reactions. Procedure: The procedure for this lab follows the procedure from the Chem 1310 2007- 2008 Laboratory Manuel with the following changes: 7. Record the temperature to the nearest 0.1ºC after 10 seconds and every 10 seconds for 5 minutes.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Discussion/Conclusion: The purpose of this lab was to understand and apply Hess’s Law, a property in the study of thermodynamics. Hess’s Law involves the combination of the enthalpy changes for two equations to find the enthalpy change for a third equation, which is a combination of the first two equations. In this case, the first two reactions involved NaOH added to HCl to form NaCl and H 2 O or NH 3 added to HCl to form NH 4 Cl. The reaction that was
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

writeuplab11 - Ann Dysart Chem 1310-L1 Preliminaries:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online