I.
Procedures : briefly summarize the experimental procedure as if you are describing it to a nonscientist. Explain what you did and why ( do not list the steps)
DATA & OBSERVATIONS
II.
Calculations and results
Show all calculation with units and report results rounded to the correct number of significant figures
Write the balanced equation : ___________________________________
Part 1
Actual yield of Carbon Dioxide Generated Calculation
Theoretical Carbon dioxide calculation for each reactant. Circle the limiting reactant
% error calculation
Limiting Reactant compound
Excess Reagent compound
Excess Reagent Calculation
Part 2
Actual yield of Carbon Dioxide Generated Calculation
Theoretical Carbon dioxide calculation for each reactant. Circle the limiting reactant
% error calculation
Limiting Reactant compound
Excess Reagent compound
Excess Reagent Calculation
Calculated results :
| Part 1 | Part 2 | |
| Actual Yield of CO2 (g) | ||
| Theoretical Yield of CO2(g) if NaHCO3 mass is used | ||
| Theoretical Yield of CO2(g) if H3C6H5O7 mass is used | ||
| Name of Limiting Reactant (LR) | ||
| Result of Confirmation test (Was LR prediction correct) | ||
| Percent error of Actual to Theoretical Mass of CO2 | ||
| Excess Reactant (g) |
Discussions & Conclusions
State the limiting reactant and the excess mass of the remaining reactant for 1 successful trail for part 1 and 2
Discuss the percent error between the theoretical yield your actual yield. Was your actual yield higher or lower than your theoretical?
include three sources of error that could have led to this discrepancy. DO NOT write ” human error”. If you know you made an error, you should have repeated the experiment! instead, give specific examples of unavoidable error inherent in the procedure and measurements. Keep in mind that losses of reactants or solution will actually lead to the error that you think you have produced more carbon dioxide than you really did. What would this do to your % yield
One of the indications of Alka-Seltzer is that it will neutralize stomach acid. When the tablet is dissolved in water before consumption, which reactant do you think is the limiting reactant in the actual medication. Explain your answer
List at least 2 types of reactions ( i.e precipitation) that the reaction in this lab can be categorized as and define each type