Heating Lab-1

Heating Lab-1 - Purpose: The purpose of this lab is to...

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Purpose:  The purpose of this lab is to measure, using a calorimeter, the energy changes accompanying  neutralization reactions.  References: Nelson, John H. and Kemp, Kenneth C. Laboratory Experiments  to accompany Chemistry: The   Central Science , 9 th  ed. Upper Saddle River, NJ: Pearson Education, Inc., 2003. Balanced Chemical Reactions: HCl (aq)  + NaOH (aq)    NaCl (aq)  + H 2 0 (l) HC 2 H 3 O 2(aq)  + NaOH (aq)    NaC 2 H 3 O 2(aq)  + H 2 0 (l) Hazards and Safety: Goggles must be worn at all times. Hair and lose clothing must be removed or tied back. Be careful when lighting the Bunsen burner that nothing flammable is near it, unless  instructed by the lab. Watch while pouring the hot water and acid into the calorimeter that nothing is splashed  out of the container. Do not remove the temperature probe from the liquid until the full time has elapsed and  your data is recorded. Do not remove the cardboard square until the full time has elapsed and the data is  recorded. Materials:  Glassware Hardware Reagents 400 mL beaker Bunsen Burner 1 M HCl
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50 mL graduated cylinder 250 mL beaker Wire gauze Cardboard square with hole in  the center Go! Link temperature probe 2 Styrofoam cups Ring stand Iron ring 1 M HC 3 H 3 O 2 1 M NaOH Procedure: - Set up and observe calorimeter before performing lab - Measure 50 ml of cold water in a Styrofoam cup  - Measure 50 ml of water in a beaker and heat to 15-20 degrees higher than room 
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This note was uploaded on 05/02/2010 for the course ECON 4428 taught by Professor Dr.siwak during the Spring '10 term at Drew.

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Heating Lab-1 - Purpose: The purpose of this lab is to...

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