What is exactly the pH value of distilled water?

1.0
7.0
10.0
It depends on the temperature
Pure water is about 7 at 25 °C; this value de­creas­es with in­creas­ing tem­per­a­tures. At 50 °C, it is 6.55. It is also worth to note, that water that has been exposed to air is mildly acidic, because it absorbs carbon dioxide from the air.

Answers distribution

1.0
7.0
10.0
It depends on the temperature
answers
flagPakistan
0%
36%
0%
63%
11
flagFrance
8%
50%
0%
41%
12
flagAustralia
6%
66%
0%
26%
15
flagItaly
15%
38%
7%
38%
13
flagIndia
7%
59%
2%
30%
103
flagthe United States
12%
49%
5%
31%
150
flagthe Netherlands
36%
27%
0%
36%
11
flagNorway
7%
57%
0%
35%
14
flagGermany
21%
41%
3%
33%
60
flagPoland
20%
49%
5%
25%
3390
flagthe United Kingdom
19%
57%
3%
19%
87
flagUkraine
20%
60%
10%
10%
10
flagUnknown
27%
50%
5%
13%
36

Gender

men25%
women22%
1.0
18%
19%
7.0
50%
54%
10.0
6%
4%
It depends on the temperature
24%
22%

Details

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Illustration: Steven Depolo
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