Brand of vinegar or unknown no. Colauita White Wine Trial 1 112 2803 Trial 2 Trial 1 Trial 2 112.2803 112.822112.796 T15 565 11S.5 1. Mass of flask (g) T14, 115.603 2. Mass of flask + vinegar (g) 2,696 3. Mass of vinegar (g) 3.323 2,743 2,749 B. Analysis of Vinegar Sample 2mL 7,5 23 mL 1. Buret reading of NaOH, initial (mL) 5.25ML 13ML 9mL 2. Buret reading of NaOH, final (mL) 32,7 33,3 31,2 1. Volume of NaOH used (mL) 2lmL 27 45 m 20.5 32.2 4. Molar concentration of NaOH (mol/L) oi135 O.135 • 003 • 004 1003 063 5. Moles of NaOH added (mol) 6. Moles of CH,COOH in vinegar (mol) 7. Mass of CH,COOH in vinegar (g) 8. Percent by mass of CH,COOH in vinegar (%) 9. Average percent by mass of CH,COOH in vinegar (%) *Calculations for Trial 1 of the first vinegar sample on next page.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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alculate the approximate volume of the vinegar sample needed for the analyses (Part A.1).
Brand of vinegar or unknown no.
Colauita
tof White
Wine
Trial 1
1122809
Trial 2
Trial 1
Trial 2
e Guia
112.280g
(12.822g 112.796
115 565 lis.9
1. Mass of flask (g)
l15.603
2. Mass of flask + vinegar (g)
2.496
3.323
2,743 2,749
3. Mass of vinegar (g)
B. Analysis of Vinegar Sample
2mL
7.5
23mL 32.コ
1. Buret reading of NaOH, initial (mL)
5.25mL
13ML
amL
2. Buret reading of NaOH, final (mL)
33,3
31.2
1. Volume of NaOH used (mL)
2! mL a7.45 me
20.3
32.2
o i135
• 004
1 Molar concentration of NaOH (mol/L)
Oi135
• 00 3
1003
, 063
5. Moles of NaOH added (mol)
6. Moles of CH,COOH in vinegar (mol)
7. Mass of CH,COOH in vinegar (g)
8. Percent by mass of CH,COOH in vinegar (%)
9. Average percent by mass of CH,COOH
in vinegar (%)
Calculations for Trial 1 of the first vinegar sample on next page.
Experiment 10
137
Transcribed Image Text:alculate the approximate volume of the vinegar sample needed for the analyses (Part A.1). Brand of vinegar or unknown no. Colauita tof White Wine Trial 1 1122809 Trial 2 Trial 1 Trial 2 e Guia 112.280g (12.822g 112.796 115 565 lis.9 1. Mass of flask (g) l15.603 2. Mass of flask + vinegar (g) 2.496 3.323 2,743 2,749 3. Mass of vinegar (g) B. Analysis of Vinegar Sample 2mL 7.5 23mL 32.コ 1. Buret reading of NaOH, initial (mL) 5.25mL 13ML amL 2. Buret reading of NaOH, final (mL) 33,3 31.2 1. Volume of NaOH used (mL) 2! mL a7.45 me 20.3 32.2 o i135 • 004 1 Molar concentration of NaOH (mol/L) Oi135 • 00 3 1003 , 063 5. Moles of NaOH added (mol) 6. Moles of CH,COOH in vinegar (mol) 7. Mass of CH,COOH in vinegar (g) 8. Percent by mass of CH,COOH in vinegar (%) 9. Average percent by mass of CH,COOH in vinegar (%) Calculations for Trial 1 of the first vinegar sample on next page. Experiment 10 137
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