{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

McMullen_exp16_graded

McMullen_exp16_graded - Experiment 16 Identification of an...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Experiment 16 – Identification of an Unknown Acid Spring 2010 Name Chelsea McMullen Lab Section 428 Point Summary (See Blackboard for detailed grading rubric) Superior Excellent Satisfactory Fair Poor Omitted Introduction •Purpose of Report 2.5 •Goals of Experiment 2.5 Materials and Methods 5 Results and Discussion •Description of data 2.5 •Data Tables 2.5 •Data Table Titles 2.5 •Graphs 2.5 •Figure Captions •Sample Calculations 2.5 •Systematic Error 7 •Random Error 8 Discussion of discrepancies 10 Other 2.5 Unknown Identification 50 TOTAL POINTS 100 TA Comments/Suggestions: Good Job!
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
C HEMISTRY 102L R EPORT T EMPLATE EXPT. Identification of an Unknown Acid 16 16 Introduction The purpose of this report is to use the equivalence point and half equivalence point determined from the titration curve created to determine the identity of an unknown acid. The objective of the experiment was to conduct a titration of a pre-determined concentration of NaOH and an unknown acid solution. A titration curve was created by using a pH sensor during the titration, and the volume of base, equivalence point and half equivalence point were determined. These values were used to determine the molar mass, and the identity of the unknown substance. Materials and Methods The procedure for this experiment was taken from UNC Chemistry 102L Lab Manual, Experiment 16: Identification of and Unknown Acid. There were no deviations from the procedure. A buret was conditioned and filled with the NaOH solution that was prepared last week. About 0.3 to 0.4 g of the assigned unknown acid was weighed and added into a clean 100mL beaker. The exact weight was recorded. The acid was distilled with 50 mL of water. A stir bar was placed in the beaker and the beaker was placed on a stir plate, and stirred slowly for five minutes.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern