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Acid-Base Titration Curves

Autor:   •  December 28, 2017  •  1,973 Words (8 Pages)  •  191 Views

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Figure 2. Titration curve of 10 mL 0.1M NaOH with 0.1M HCl

[pic 4]

2. Weak Acid - Strong Base

Table 3. Titration of 10mL 0.1M HOAc with 0.1M NaOH

NaOH

Vol (mL)

HOAc

pH

NaOH

Vol (mL)

HOAc

pH

NaOH

Vol (mL)

HOAc

pH

NaOH

Vol (mL)

HOAc

pH

0

2.83

6

4.5

12

5.62

15.5

11.52

1

3.48

7

4.65

13

6.31

16

11.67

2

3.8

8

4.8

13.5

10

3

4

9

4.93

14

11

4

4.2

10

5.1

14.5

11.27

5

4.4

11

5.32

15

11.45

Figure 3. Titration curve of 10mL 0.1M HOAc with 0.1M NaOH

[pic 5]

- Titrations of Polyprotic Acids

- Strong Acid - Strong Base

Table 4. Titration of 10mL 0.1M H2SO4 with 0.1M NaOH

NaOH

Vol (mL)

H2SO4

pH

NaOH

Vol (mL)

H2SO4

pH

NaOH

Vol (mL)

H2SO4

pH

0

0.42

6

0.83

14.5

1.65

1

0.57

7

0.83

16.5

2.04

2

0.8

9

1.07

18.5

11.18

3

0.71

10

1.1

19

11.65

4

0.72

11.5

1.33

19.5

11.88

5

0.81

12.5

1.33

Figure 4. Titration of 10mL 0.1M H2SO4 with 0.1M NaOH

[pic 6]

- Weak Acid - Strong Base

Table 5. Titration of 10mL 0.1M H3PO4 with 0.1M NaOH

NaOH

Vol (mL)

H3PO4

pH

NaOH

Vol (mL)

H3PO4

pH

NaOH

Vol (mL)

H3PO4

pH

NaOH

Vol (mL)

H3PO4

pH

NaOH

Vol (mL)

H3PO4

pH

...

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