pH

1mol/L K2HPO4(ml)

1mol/L KH2PO4(ml)

5.8

8.5

91.5

6.0

13.2

86.8

6.2

19.2

80.8

6.4

27.8

72.2

6.6

38.1

61.9

6.8

49.7

50.3

7.0

61.5

38.5

7.2

71.7

28.3

7.4

80.2

19.8

7.6

86.6

13.4

7.8

90.8

9.2

8.0

94.0

6.2