1. Answer the following questions based on the table: Pickling Vinegar Conc NaOH (M) 0.1005 Trial #1 Trial #2 Trail #3 Trial #4 Volume Vinegar (mL) 2.00 2.00 2.00 2.00 Initial Volume NaOH (mL) 0.32mL 0.22 1.02 0.44 Final Volume (mL) 24.25mL 24.20 25.00 24.45 Volume NaOH added (mL) 23.93mL 23.98mL 23.98mL 24.01mL a) Calculate the Average Volume NaOH used...show the trials that have %difference within 1% of each other. If you need to discard any trials- make sure to note this. b) Mass percentage of acetic acid in vinegar using your average volume of NaOH from Q1: (include a balanced reaction equation and show all work) c) % error calculation. Show ybur work in full. See Appendix B for details. (Reminder: Regular vinegar is 5.25% listed on bottle, pickling vinegar is 7.34% listed on bottle) d) In the titration of vinegar, a student uses 12.36 mL of NaOH(aq) (Molarity 0.100 M) to titrate a 2.00 mL sample of vinegar. If the student used lithium hydroxide (Molarity: 0.200 M) instead, what volume of lithium hydroxide would you expect them to use? Show balanced equations. e) A student performs titrations of equivalent amounts of HNO, (aq) with 0.1 M NaOH(aq). The volumes of NaOH(aq) needed to titrate are measured to be : 18.09 mL, 17.92 mL, 18.17 mL. Using % difference, does the student need to perform another titration or are their values within acceptable agreement? Explain why or why not?
1. Answer the following questions based on the table: Pickling Vinegar Conc NaOH (M) 0.1005 Trial #1 Trial #2 Trail #3 Trial #4 Volume Vinegar (mL) 2.00 2.00 2.00 2.00 Initial Volume NaOH (mL) 0.32mL 0.22 1.02 0.44 Final Volume (mL) 24.25mL 24.20 25.00 24.45 Volume NaOH added (mL) 23.93mL 23.98mL 23.98mL 24.01mL a) Calculate the Average Volume NaOH used...show the trials that have %difference within 1% of each other. If you need to discard any trials- make sure to note this. b) Mass percentage of acetic acid in vinegar using your average volume of NaOH from Q1: (include a balanced reaction equation and show all work) c) % error calculation. Show ybur work in full. See Appendix B for details. (Reminder: Regular vinegar is 5.25% listed on bottle, pickling vinegar is 7.34% listed on bottle) d) In the titration of vinegar, a student uses 12.36 mL of NaOH(aq) (Molarity 0.100 M) to titrate a 2.00 mL sample of vinegar. If the student used lithium hydroxide (Molarity: 0.200 M) instead, what volume of lithium hydroxide would you expect them to use? Show balanced equations. e) A student performs titrations of equivalent amounts of HNO, (aq) with 0.1 M NaOH(aq). The volumes of NaOH(aq) needed to titrate are measured to be : 18.09 mL, 17.92 mL, 18.17 mL. Using % difference, does the student need to perform another titration or are their values within acceptable agreement? Explain why or why not?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:1. Answer the following questions based on the table:
Pickling Vinegar
Conc NaOH (M)
0.1005
Trial #1
Trial #2
Trail #3
Trial #4
Volume Vinegar (mL)
2.00
2.00
2.00
2.00
Initial Volume NaOH (mL)
0.32mL
0.22
1.02
0.44
Final Volume (mL)
24.25mL
24.20
25.00
24.45
Volume NaOH added (mL)
23.93mL
23.98mL
23.98mL
24.01mL
a) Calculate the Average Volume NaOH used...show the trials that have %difference
within 1% of each other. If you need to discard any trials- make sure to note this.
b) Mass percentage of acetic acid in vinegar using your average volume of NaOH from
Q1: (include a balanced reaction equation and show all work)
c) % error calculation. Show ybur work in full. See Appendix B for details. (Reminder:
Regular vinegar is 5.25% listed on bottle, pickling vinegar is 7.34% listed on bottle)
d) In the titration of vinegar, a student uses 12.36 mL of NaOH(aq) (Molarity 0.100 M) to
titrate a 2.00 mL sample of vinegar. If the student used lithium hydroxide (Molarity:
0.200 M) instead, what volume of lithium hydroxide would you expect them to use?
Show balanced equations.
e) A student performs titrations of equivalent amounts of HNO, (aq) with 0.1 M
NaOH(aq). The volumes of NAOH(aq) needed to titrate are measured to be : 18.09
mL, 17.92 mL, 18.17 mL. Using % difference, does the student need to perform
another titration or are their values within acceptable agreement? Explain why or why
not?
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