You want to make a 1M- succinate phosphate buffer that is pH 7 from two given stock solutions. Each is a 1M succinate phosphate buffer, but one is at a pH of 2 and the other is a pH of 12. Starting with pH2 and pH12 stock solutions how would you make 5mls of each pH between the two solutions.

pH	Ratio of 2:12	pH 2 volume	pH 12 volume
2	10:0	5mls of pH 2	0mls of pH 12
3	9:1
4	8:2
5	7:3
6	6:4
7	5:5	2.5mls of pH 2	2.5mls of pH 12
8	4:6
9	3:7
10	2:8
11	1:9
12	0:10	0 ml of pH 2	5 ml of pH 12