Chem Lab report Enthalpy Hesss law

Chem Lab report Enthalpy Hesss law - Objective: The purpose...

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The purpose of this lab was to perform procedures using a simple cup calorimeter and to use Hess’s Law and a temperature probe to determine the enthalpy of two different equations. Procedure: Part A 1. We used the simple calorimeter and measured the dissolution of a 4.008g and 8.075g sample of solid ammonium nitrate in 50mL and 100mL of deionized water. We did this using the techniques in Part A on page 104 of the lab manual. Part B 1. We used 50 mL of HNO3 and determined its initial temperature. Then we measured 50 mL of NH3 and measured its initial temperature. Then we got the average of those temperatures and added them together using the procedure on page 106 of the lab manual. 2. We used 50 mL of HCL and determined its initial temperature. Then we measured 50 mL of NaCH2CO2 and determined its initial temperature. Then we took the average of those temperatures and added them together using the procedure on page 106. Data:
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This note was uploaded on 02/11/2010 for the course CHEM 116 taught by Professor Stevenson during the Spring '08 term at Purdue University-West Lafayette.

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Chem Lab report Enthalpy Hesss law - Objective: The purpose...

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