Titration Experiment Write-up
Lab Notebook
Procedure – reference the handout; be sure to include any changes.
Data – a clear record of your data collection. All volume measurements should have been recorded to two decimal places off of your buret.
Lab book format – signature, stamp, etcÉ
Informal Report
Title page with name, date, experiment title, and section #
Cut and paste the grading rubric at the base of this document on the title page
Objective-What is the major goal(s) of this experiment? Be sure to be specific, but limit your objective to 3-4 sentences maximum.
Results and calculation section – Report your average gram molar mass with standard deviation and average melting point. Show your calculations. These may be typed or handwritten. Note any unusual or unexpected observations in the experiment.
Discussion– State the
identity of your unknown acid.
Discuss how you came to that conclusion using your average gram molar mass
with standard deviation and average melting point range to justify your
identification. Explain how you
narrowed down the suspects and state your second choice and/or third choice, if
appropriate and how they were eliminated.
Be sure to discuss, how many standard
deviations the actual molar mass of the acid you believe best represents your
unknown is away from the experimental molecular mass of the acid. Also, does the actual melting point of
your identified acid fall within the range of your experimental average melting
points? Explain why or why not. Discuss the accuracy and precision of
your average gram molar mass and melting point. Discuss any sources of error that may have occurred
in the experiment. For example, if
you added too much base to one of your titrations, you should identify how that
would have affected your gram molar mass calculation.
Conclusion-Evaluate the objective of the experiment and restate the identity of your unknown acid, the average gram molar mass and the average melting point range.
Questions - Complete the post lab questions at the end of the experiment.
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Titration Experiment – Grading Rubric |
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Lab Book |
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/15 |
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Procedure/Format |
/8 |
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Data |
/7 |
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Informal Report |
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/60 |
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Title Page |
/2 |
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Objective |
/5 |
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Results and Calculations |
/13 |
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Discussion |
/15 |
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Conclusion |
/10 |
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Questions |
/15 |
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Computer Printout |
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/25 |
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Total |
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/100 |