Chm 204 (2018) Expt 8 Vinegar Titration
Enter your name and your lab partner's name *
Your answer
Enter your lab station: *
Use the format 1A, 1B, 2A, 2B, 3A, 3B, etc. No space between number and letter!
Your answer
Enter your section *
Enter your Creighton e-mail address
Format: ABC12345@creighton.edu -- Be careful! This is how you will receive the evaluation of your on-line report. Most of my undeliverable e-mail comes from sending out on-line reports to people who made a typo entering their e-mail address - usually by misspelling creighton!
Your answer
Enter your partner's e-mail address
Your answer
Numbers that are not overly small or large can be entered directly (for example, 0.00448). Numbers larger than 1000 or smaller than 0.001 should be entered as exponentials. Exponentials must be entered in the ONLY format recognized by Microscoft Excel. If your value has to be re-entered for grading, you will receive a 1 pt penalty for each occurance. *
Example of an acceptable entry: 2.347E-6 (Note: No spaces!) You can have spaces with the units, however.
1. (2 pts) Enter the mass of vinegar used for your best trial. (Your "best trial" is the one with the lowest volume of NaOH but still persisted faint pink for 15 seconds with gentle swirling.)
Include proper units and significant figures.
Your answer
2. (2 pts) Enter the volume of NaOH(aq) used in your best trial.
Include units and significant figures. (Answer in mL)
Your answer
3. (3 pts) How many moles of NaOH were used to reach the end point for you best trial?
Include units and significant figures
Your answer
4. (2 pts) Moles of the acetic acid from in your best trial.
Include significant figures and units.
Your answer
5. (3 pts) What is the molarity of acetic acid in the vinegar in your best trial?
Include units and significant figures.
Your answer
6. (3 pts) What is the mass percent of acetic acid in vinegar in your best trial?
Include significant figures and units.
Your answer
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