Volume of the STOCK aliquot (ml)

Final preparation

Calculated pH

Solution

NH₃ (ml)

Solution

NH₄Cl (ml)

Final volume buffer (ml)

Concentration buffer (M)

Obtained pH

8.44

30

5

50

0.306

9.0

9.04

15

10

25

0.213

9.48

9.22

15

15

100

0.253

9.81

9.58

15

35

100

0.413

10.25

9.99

5

30

50

0.284

10.85