Sodium acetate-acetic acid buffer solutions, pH 3.7-5.6
Sodium acetate trihydrate, CH3COONa.3H2O, M.Wt. 136.09;
0.2M solution contains 27.22g/l.
Acetic acid, glacial is ~17.47M.
x ml 0.2M NaOAc and y ml 0.2M HOAc mixed.
pH, 18°C X mL
0.2M NaOAc
Y mL
0.2M HOAc
3.7 10.0 90.0
3.8 12.0 88.0
4.0 18.0 82.0
4.2 26.5 73.5
4.4 37.0 63.0
4.6 49.0 51.0
4.8 59.0 41.0
5.0 70.0 30.0
5.2 79.0 21.0
5.4 86.0 14.0
5.6 91.0 9.0
Sodium acetate trihydrate, CH3COONa.3H2O, M.Wt. 136.09;
0.2M solution contains 27.22g/l.
Acetic acid, glacial is ~17.47M.
x ml 0.2M NaOAc and y ml 0.2M HOAc mixed.
pH, 18°C X mL
0.2M NaOAc
Y mL
0.2M HOAc
3.7 10.0 90.0
3.8 12.0 88.0
4.0 18.0 82.0
4.2 26.5 73.5
4.4 37.0 63.0
4.6 49.0 51.0
4.8 59.0 41.0
5.0 70.0 30.0
5.2 79.0 21.0
5.4 86.0 14.0
5.6 91.0 9.0
No comments:
Post a Comment
Note: only a member of this blog may post a comment.