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The objective consists in finding the PH of •acidic water•distilled water•tap water
The tools and materials are:•Fourier accessories•3 beakers•netbook•distilled water•acidic water•tap water
The pH measures the acidity of a solution.The pH scale ranges:•from 0 to 14;•from 0 to 7 for acid ;•from 7 to 14 for basic ;•7 is the value of neutrality .
Ph distilled water
6,700
6,800
6,900
7,000
7,100
7,200
7,300
7,400
7,500
0 1 2 3 4 5 6 7 8 9
Time (s)
Ph distilled water
This graph represents the ph of distilled water.
The value of pH varies from 7 to 7.4: the distilled water is basic.
Ph tap water
7,2
7,25
7,3
7,35
7,4
7,45
0 1 2 3 4 5 6 7 8 9
Time (s)
Ph tap water
This graph represents the ph of tap water.
The value of pH varies from 7.3 to 7.4: the distilled water is basic.
Ph acid water
2,13
2,14
2,15
2,16
2,17
2,18
2,19
2,2
2,21
2,22
2,23
0 1 2 3 4 5 6 7 8 9
Time (s)
Ph acid water
This graph represents the ph of acid water.
The value of pH varies from 2.22 to 2.16: the distilled water is acid.
The distilled water has the ph of 7, the tap water has ph between 7 to 8 and acid water has ph 2.The distilled and acid water decrease in time, while the ph of tap water increases .
We have used the acid water solution instead of rainwater because it was impossible to collect real samples of rainwater.
Ph sensor