Strong acid SoA на weak base W.B. NH3 HCl + NaOH SA W.B. Total Volume of base pH added, mL Strong Weak acid base SA x axis Total Volume of base added, mL WB CHM Y axis pH 0.00 7.9 5.00 0.00 0.5 1.5 5.00 10.00 1.7 0.6 10.00 15.00 0.8 1.9 17.00 15.00 1.0 2.7 16.00 19.00 2.3 1.2 17.00 1.3 20.00 2.5 20.50 18.00 1.5 2.6 21.00 2.8 19.00 1.9 22.00 4.9 20.10 4.7 24.00 8.4 21.00 12.0 color change 26.00 22.00 8.8 12.7 23.00 30.00 13.0 9.1 24.00 35.00 9.3 13.1 25.00 40.00 13.3 9.4 45.00 30.00 13.6 9.5 35.00 13.8 40.00 13.9 45.10 14.0 weak aad W.A. HOAC Total Volume of base added, mL Strong bas SB NaOH CHM pH 0.00 3.47 5.00 4.77 10.00 5.45 15.00 5.92 17.00 6.21 19.00 7.01 -Color change 19.50 7.96 20.00 11.98 20.50 12.38 21.00 12.65 22.00 12.94 26.00 13.33 30.00 13.60 36.00 13.68 40.00 13.70
Strong acid SoA на weak base W.B. NH3 HCl + NaOH SA W.B. Total Volume of base pH added, mL Strong Weak acid base SA x axis Total Volume of base added, mL WB CHM Y axis pH 0.00 7.9 5.00 0.00 0.5 1.5 5.00 10.00 1.7 0.6 10.00 15.00 0.8 1.9 17.00 15.00 1.0 2.7 16.00 19.00 2.3 1.2 17.00 1.3 20.00 2.5 20.50 18.00 1.5 2.6 21.00 2.8 19.00 1.9 22.00 4.9 20.10 4.7 24.00 8.4 21.00 12.0 color change 26.00 22.00 8.8 12.7 23.00 30.00 13.0 9.1 24.00 35.00 9.3 13.1 25.00 40.00 13.3 9.4 45.00 30.00 13.6 9.5 35.00 13.8 40.00 13.9 45.10 14.0 weak aad W.A. HOAC Total Volume of base added, mL Strong bas SB NaOH CHM pH 0.00 3.47 5.00 4.77 10.00 5.45 15.00 5.92 17.00 6.21 19.00 7.01 -Color change 19.50 7.96 20.00 11.98 20.50 12.38 21.00 12.65 22.00 12.94 26.00 13.33 30.00 13.60 36.00 13.68 40.00 13.70
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter9: Acids, Bases, And Salts
Section: Chapter Questions
Problem 9.15E: The following reactions illustrate Brnsted acid-base behavior. Complete each equation....
Related questions
Question
For each of the three titrations, determine the expected pH at each of the following 4 points in the titration. Assume that all acids are exactly 0.1 M and that all bases are exactly 0.2 M for purposes of your calculations. Round your final pH values to the nearest 0.1 pH units since that is how we read the experimental values. The 4 points for which the pH values are to be calculated are:
a) after 0 ml of base have been added (initial pH)
b) after 10.0 mL of base have been added (halfway to the equivalence point) after 20.0 mL of base have been added (equivalence point)
c) after 20.0 mL of base have been added (equivalence point)
d)after 25.0 mL of base have been added (5 ml past the equivalence point)
Transcribed Image Text:Strong acid
SoA
на
weak base
W.B.
NH3
HCl + NaOH
SA
W.B.
Total Volume of base
pH
added, mL
Strong
Weak
acid
base
SA
x axis
Total Volume of base
added, mL
WB
CHM
Y axis
pH
0.00
7.9
5.00
0.00
0.5
1.5
5.00
10.00
1.7
0.6
10.00
15.00
0.8
1.9
17.00
15.00
1.0
2.7
16.00
19.00
2.3
1.2
17.00
1.3
20.00
2.5
20.50
18.00
1.5
2.6
21.00
2.8
19.00
1.9
22.00
4.9
20.10
4.7
24.00
8.4
21.00
12.0
color change
26.00
22.00
8.8
12.7
23.00
30.00
13.0
9.1
24.00
35.00
9.3
13.1
25.00
40.00
13.3
9.4
45.00
30.00
13.6
9.5
35.00
13.8
40.00
13.9
45.10
14.0
Transcribed Image Text:weak aad
W.A.
HOAC
Total Volume of base
added, mL
Strong bas
SB
NaOH
CHM
pH
0.00
3.47
5.00
4.77
10.00
5.45
15.00
5.92
17.00
6.21
19.00
7.01
-Color change
19.50
7.96
20.00
11.98
20.50
12.38
21.00
12.65
22.00
12.94
26.00
13.33
30.00
13.60
36.00
13.68
40.00
13.70
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