Editing Lab Quiz B From Types Of Chemical Reactions Lab To Le Chatelier's Principle Lab Short Answer Continued

ChemistryWiki | RecentChanges | Preferences

Name: ________________________________ Period: ___________ 
<center>Short Answer section, Lab Quiz B Page 3</center> 
<center>Answer One of the two questions below or on back of page</center> 
1. In the Le Chatelier's Principle lab, Part II, you added Na<nowiki>OH</nowiki> to the solution. You observed a shift of equilibrium with addition of this solution. There are two different "ways" (actually two different substances) you can use as the stress in your explanation of why equilibrium shifted. a) Please explain how you go from Na<nowiki>OH</nowiki> to the stress substance and b) how it shifted the equilibrium if you started just with chromate (<nowiki>CrO</nowiki>42-) in your test tube (fill in table below).

2. In the Reacting Iron with Copper (II) Sulfate pentahydrate Lab, from your calculations which of the two reactants is the limiting reactant. What observation(s) in the lab supports your calculation of which reactant was limiting reactant? Explain? If your experimental observations does not support your calculation, explain why it does not support it including lab observations and what you should have seen. 
 
 Only complete if doing Question 1 Part B (Question 1 Part A needs to go on back of this page.) 
Stress: _______________________________________________________________ 
 
How rxn tries to remove stress: _________________________________________________ 
 
Circle: Make more product or more reactant 
 
Circle: Favoring: Forward rxn or Backward rxn 
 
Circle: Shift Equilibrium to: Left(more reactant) or Right (more product) 
 
Solution turned: More Yellow or More Orange or No change

View other revisions
ChemistryWiki | RecentChanges | Preferences