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					Acid Base Titration WS
1-4. Virtual Lab Acid Base Titration Go to the following web site:
http://lrs.ed.uiuc.edu/students/mihyewon/chemlab_experiment.html
Run the experiment several times with different combinations of strong and weak acids and bases.
Determine the pH of the equivalence points when the following are titrated:
         1. strong acid and strong base
         2. weak acid and weak base
         3. weak acid and strong base
         4. strong acid and weak base
What indicators are appropriate for the different conditions?
5. The following data were collected from a titration of 50.00mL of ethanoic acid (CH3COOH) of
unknown concentration with 0.100M NaOH. Plot these data (pH on y-axis) to obtain a titration
curve
Volume of NaOH (mL)      pH                      Volume of NaOH (mL)  pH
0                                                50.00                8.73
10.00                    4.15                    50.01                8.89
25.00                    4.76                    51.00                11.00
40.00                    5.36                    60.00                11.96
48.00                    6.45                    75.00                12.30
49.99                    8.55                    100.00               12.52
a. What is the pH at the end point of this titration?
b. Use figure 19-18 to identify one or more indicators that could be used to determine the end point
of this titration.
6. Ch. 19 #22,33,90

Acid Base Titration WS
1-4. Virtual Lab Acid Base Titration Go to the following web site:
http://lrs.ed.uiuc.edu/students/mihyewon/chemlab_experiment.html
Run the experiment several times with different combinations of strong and weak acids and bases.
Determine the pH of the equivalence points when the following are titrated:
         1. strong acid and strong base
         2. weak acid and weak base
         3. weak acid and strong base
         4. strong acid and weak base
What indicators are appropriate for the different conditions?
5. The following data were collected from a titration of 50.00mL of ethanoic acid (CH3COOH) of
unknown concentration with 0.100M NaOH. Plot these data (pH on y-axis) to obtain a titration
curve
Volume of NaOH (mL)      pH                      Volume of NaOH(mL)   pH
0                                                50.00                8.73
10.00                    4.15                    50.01                8.89
25.00                    4.76                    51.00                11.00
40.00                    5.36                    60.00                11.96
48.00                    6.45                    75.00                12.30
49.99                    8.55                    100.00               12.52
a. What is the pH at the end point of this titration?
b. Use figure 19-18 to identify one or more indicators that could be used to determine the end point
of this titration.
6. Ch. 19 #22,33,90

				
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