Editing revision 30 of EndoExothermicReactionLab

ChemistryWiki | RecentChanges | Preferences

Editing old revision 30. Saving this page will replace the latest revision with this text.

<center>Mini-Lab: Endothermic and Exothermic Reactions</center> 
<center>Energy in Chemical Reaction Notes and Lab Procedures</center> 
 
Notes on Energy in Chemical Reactions.

a) [http://www.tmcleod.org/Level1/Chem328Intro/PotentialEnergyDiagram.pdf Potential Energy Diagrams for Exo and Endothermic Reactions], print out and take notes on or use space below 
b)Video on Energy in Chemical Reactions, [https://www.youtube.com/watch?v=5FzerUQBRwo&feature=youtu.be Energy and Chemical Reactions] 
 
General Note - ALL CHEMICAL REACTIONS REQUIRES CHANGE IN ENERGIES 
 
PER - Potential Energy of Reactant , PEP - Potential Energy of Product 
 
Endothermic Reaction (PER > or < or = PEP) - 
 
Exothermic Reaction (PER > or < or = PEP) - 
 
Activation Energy ( E ac )- 
 
Heat of Reaction - 
 
Other notes: 
 
 
 
 
 
 
Procedure for lab: 
 
1. Add 1/2 teaspoon of barium hydroxide ( Ba1(OH)2 (s) ) to a 100 ml beaker. Make (record) observation of chemical. 
2. Add 1/2 teaspoon of ammonium chloride ( NH4Cl1 (s) ) to this beaker. Make (record) observation of chemical before adding. 
3. Using a large stirring rod, stir until reaction stops. Record observation as you are stirring. Make sure to feel the bottom of the beaker. 
4. Clean-up: Dilute all material in the beaker and pour down sink. Then follow regular lab clean-up procedures. 
 
Chemical Reaction (We will work on in class):

View other revisions
ChemistryWiki | RecentChanges | Preferences