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uncch102L_exp16

uncch102L_exp16 - Experiment 16 Identification of an...

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Experiment 16 – Identification of an Unknown Acid Summer 2010 I HAVE USED THIS LAB! IF YOU USE MY LABE VERBATUM, YOU WILL BE CAUGHT! Point Summary (See Blackboard for detailed grading rubric) Superior Excellent Satisfactory Fair Poor Omitted Introduction •Purpose of Report •Goals of Experiment Materials and Methods Results and Discussion •Description of data •Data Tables •Data Table Titles •Graphs •Figure Captions •Sample Calculations •Systematic Error •Random Error Discussion of discrepancies Other Unknown Identification TOTAL POINTS TA Comments/Suggestions:
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C HEMISTRY 102L R EPORT T EMPLATE EXPT. Identification of an Unknown Acid 16 16 Introduction The purpose of this report is to determine the identity of an unknown acid species by analyzing a titration curve and calculating the molar mass of the acid. The purpose of the experiment was to collect pH readings while titrating an unknown acid with a standardized NaOH solution. The equivalence points were determined to give aid in identifying the molar mass for the acid which, in turn, help to determine the identity of the acid. Materials and Methods The procedure for Experiment 16: Identification of an Unknown Acid was acquired from the Fall 2010 UNC-CH CHEM-102L Lab Manual. A clean 50-mL buret was conditioned and filled with the NaOH solution that was standardized in the previous lab. To the nearest milligram, 0.3-0.4 g of assigned unknown acid was weighed into a clean 100-mL beaker. The weight was recorded The card was not
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