background [prelab assignment (10 points) due at the begining of the lab]

for the reaction:   NaCl _(aq)  +  AgNO_{3 (aq)}  -->  NaNO_{3 (aq)}  +  AgCl _(s), calculate the amount of NaCl and AgNO₃ needed to generate 1.0 g AgCl  (show your work)

sketch a data table for your experimental measurements (i.e. review the purpose & content of your lab report)

 

purpose

calculate amount of reactants needed to produce 1.0 g AgCl in the reaction:  NaCl + AgNO₃ --> products

calculate % yield in the above reaction

materials

# grams of AgNO₃ = ? 

# grams of NaCl = ?

water; graduated cylinder; balance; beaker

funnel & filter paper

Bunsen burner, ring stand, metal ring

methods / analysis

student design (for economical reason, choose AgNO₃ as the limiting reactant)

Content of lab report (20 points)

introduction 

• define % yield, include an example calculation using the reaction:  N₂   +  H₂   -->  NH₃

methods 

• self-explanatory

results 

• self-explanatory; include calculation of % yield based on your experimental data

disscussion 

• error analysis:  nontrivial error & subsequent effect (be specific) on yield

 

resources

lab activity source (examples):  site 1   [access 4 / 2009]