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Values used to plot the first graph

AbsorbanceRGB
Mean pH 00,041,0550,715
Mean pH 0,50,030,980,653
Mean pH 10,030,8970,6
Mean pH 1,50,0330,9230,597
Mean pH 20,0330,650,407
Mean pH 2,50,040,240,167
Mean pH 30,0270,1270,09
Mean pH 40,0370,110,093
Mean pH 50,0370,0930,076
Mean pH 60,0250,0850,06
Mean pH 70,0370,0770,073
Mean pH 8,50,0370,1130,083
Mean pH 90,0330,110,07
Mean pH 100,0330,0970,077
Mean pH 110,0430,1130,083
Mean pH 11,50,190,0930,13
Mean pH 120,190,10,35

All the values we measured

pH 0

AbsorbanceRGB
Sample 10,041,080,75
Sample 20,041,030,68

pH 0.5

AbsorbanceRGB
Sample 10,030,950,63
Sample 20,041,150,76
Sample 30,020,840,57

pH 1

AbsorbanceRGB
Sample 10,020,820,52
Sample 20,030,870,59
Sample 30,0410,69

pH 1,5

AbsorbanceRGB
Sample 10,040,880,57
Sample 20,030,950,61
Sample 30,03 70,940,61

pH 2

AbsorbanceRGB
Sample 10,030,690,44
Sample 20,030,580,37
Sample 30,040,680,41

pH 2,5

AbsorbanceRGB
Sample 10,050,270,18
Sample 20,040,240,16
Sample 30,030,210,16

pH 3

AbsorbanceRGB
Sample 10,030,130,09
Sample 20,030,140,09
Sample 30,020,110,09

pH 4

AbsorbanceRGB
Sample 10,040,140,1
Sample 20,030,10,09
Sample 30,040,090,09

pH 5

AbsorbanceRGB
Sample 10,040,080,08
Sample 20,030,10,08
Sample 30,040,10,07

pH 6

AbsorbanceRGB
Sample 10,020,080,06
Sample 20,030,090,06

pH 7

AbsorbanceRGB
Sample 10,030,070,06
Sample 20,040,090,08
Sample 30,040,070,08

pH 8,5

AbsorbanceRGB
Sample 10,030,140,08
Sample 20,040,120,09
Sample 30,040,080,08

pH 9

AbsorbanceRGB
Sample 10,030,110,06
Sample 20,040,120,08
Sample 30,030,090,07

pH 10

AbsorbanceRGB
Sample 10,020,090,07
Sample 20,040,110,08
Sample 30,040,090,08

pH 11

AbsorbanceRGB
Sample 10,040,090,08
Sample 20,040,130,09
Sample 30,050,120,08

pH 11,5

AbsorbanceRGB
Sample 10,20,130,12
Sample 20,180,080,14
Sample 30,20,070,14

pH 12

AbsorbanceRGB
Sample 10,210,10,36
Sample 20,160,10,34
Sample 30,190,10,35