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Solution	Attempt 1 	Attempt 2	Attempt 3	Average
Buffer pH 4	3.5	3.6	3.6	3.5
Buffer pH7	7.5	7.4	7.4	7.4
Buffer pH10	10.3	10.4	10.4	10.4
Buffer pH12	13	12.4	12.2	13.73
Distilled water	7.4	7.3	7.0	7.2

Solution	Attempt 1 	Attempt 2	Attempt 3	Average	Graph reading
Unknown 1	12.5	12.4	12.6	12.5	12.3
Unknown 2	1.7	1.6	1.6	1.6	1.5
Unknown 3	1.7	1.7	1.7	1.7	1.7