5. Use the mass of the acid, the concentration of NaOH and the volume of NaOH added at the first equivalence point to calculate the molar mass of the acid: (Show your work clearly and include proper units.) Calculated Molar mass of the unknown acid= Label the areas of the curve where a buffer is present. Locate the point where pH=pKa (halfway to the equivalence point.) Label pK, on the graph. If the acid is polyprotic, label the pK, for each equivalence point on the graph.

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...
icon
Related questions
icon
Concept explainers
Question
Data Sheet:
Unknown acid #9
Mass of the Unknown acid:
(letter or number on the unknown bottle)
#Concentration of NaOH(aq):
0.209
Volume NaOH added
0.5 ml
TUSE
1.5ml
2.0ml
2.5ml
30ml
3.5mi
tom
4.5ml
>.0ml
SsmL
6.0m)
6.5ml
10ml
7.5ml
Two's
8.5ml
9.0m)
9.5m)
100m)
10.5 m
11.0m
11.5mi
12.0ml
12,5 ml
13.0 ml
B.5 ml
14.0 ml
14.5 ml
15.0 m
на
3643.26
2.64 3:24
3:26
3:28
3.28
3:30
3:35
3.39
3:44
2 2.51
3.54
3.58
3.64
3.72
3.80
3.867
3.93
$ 4.00
4.06
4:13
48 4.20
4.28 FEFT
4.35
4.43
4.46
4.64
4.83
5.05
2.93
9.91
0.0995 M
Volume NaOH added
15.5ml
16.0 ml
16.5ml
(70m/
17.5ml
PH
10.63
10:03
11.25
11.37
11.50
Transcribed Image Text:Data Sheet: Unknown acid #9 Mass of the Unknown acid: (letter or number on the unknown bottle) #Concentration of NaOH(aq): 0.209 Volume NaOH added 0.5 ml TUSE 1.5ml 2.0ml 2.5ml 30ml 3.5mi tom 4.5ml >.0ml SsmL 6.0m) 6.5ml 10ml 7.5ml Two's 8.5ml 9.0m) 9.5m) 100m) 10.5 m 11.0m 11.5mi 12.0ml 12,5 ml 13.0 ml B.5 ml 14.0 ml 14.5 ml 15.0 m на 3643.26 2.64 3:24 3:26 3:28 3.28 3:30 3:35 3.39 3:44 2 2.51 3.54 3.58 3.64 3.72 3.80 3.867 3.93 $ 4.00 4.06 4:13 48 4.20 4.28 FEFT 4.35 4.43 4.46 4.64 4.83 5.05 2.93 9.91 0.0995 M Volume NaOH added 15.5ml 16.0 ml 16.5ml (70m/ 17.5ml PH 10.63 10:03 11.25 11.37 11.50
5. Use the mass of the acid, the concentration of NaOH and the volume of NaOH added at the first
equivalence point to calculate the molar mass of the acid: (Show your work clearly and include proper
units.)
Calculated Molar mass of the unknown acid=
6. Label the areas of the curve where a buffer is present. Locate the point where pH=pKa (halfway to
the equivalence point.) Label pK, on the graph. If the acid is polyprotic, label the pKa for each
equivalence point on the graph.
S
Transcribed Image Text:5. Use the mass of the acid, the concentration of NaOH and the volume of NaOH added at the first equivalence point to calculate the molar mass of the acid: (Show your work clearly and include proper units.) Calculated Molar mass of the unknown acid= 6. Label the areas of the curve where a buffer is present. Locate the point where pH=pKa (halfway to the equivalence point.) Label pK, on the graph. If the acid is polyprotic, label the pKa for each equivalence point on the graph. S
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Knowledge Booster
Ionic Equilibrium
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY