Laboratory Information
 Standard PRELAB Assignment
(for experiments fro the laboratory manual)
 PURPOSE
 PROCEDURE SUMMARY / Strategy
 One or two paragraphs explaining the procedure, not a listing of steps
 ADVANCE STUDY ASSIGNMENT (from the lab manual)
 Experiment #5: Simplest Formula of a Compound MiniReport Guidelines
 Original Data
 Reorganized / Formal Data Presentation (if necessary)
 Formal Calculations  Calculations should be properly labeled and include units, cancelling of units, and proper application of significant figures rules.
 Clear statement of the empirical (simplest) formula of magnesium oxide based on your calculations.
 Show a prediction of the formula based on expected charges of magnesium and oxide ions.
 Discuss deviation for your calculated ratio from the predicted ratio. Provide specific reasons why yours may have deviated in the direction that it did.
 Experiment #6: Analysis of a Hydrate Report Guidelines
 DATA / CALCULATIONS / RESULTS
 Original Data
 Reorganized / Formal Data Presentation (if necessary)
 Formal Calculations  Calculations should be properly labeled and include units, cancelling of units, and proper application of significant figures rules
 Clear statement of the formula of the unknown hydrate based on your calculations
 Name the compound based on the formula you have determined
 DISCUSSION / ERROR ANALYSIS
 Present the complete, balanced equation for the dehydration reaction based on the formula you determined for your unknown in part 1 of the experiment.
 Report the known formula for the hydrate. The actual hydrate formulas were:
 BaCl_{2}• 2 H_{2}O
 CuSO_{4} • 5 H_{2}O
 MgSO_{4} • 7 H_{2}O
 Discuss deviation for your calculated ratio from the predicted ratio. Provide specific reasons why yours may have deviated in the direction that it did.
 Explain your observations related to the behavior of the hydrate that you observed in part 2 of the experiment.
 CONCLUSIONS
 Make appropriate conclusions for Part 1 & Part 2.
 ANSWERS to the ADVANCE STUDY QUESTIONS


