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%
41%
0%
58%
12
flagFrance
8%
50%
0%
41%
12
flagAustralia
6%
66%
0%
26%
15
flagIndia
7%
59%
2%
30%
103
flagthe United States
12%
49%
5%
31%
150
flagNorway
7%
57%
0%
35%
14
flagItaly
14%
42%
7%
35%
14
flagthe Netherlands
41%
25%
0%
33%
12
flagGermany
22%
40%
3%
32%
61
flagPoland
19%
49%
5%
24%
3520
flagUkraine
15%
53%
15%
15%
13
flagthe United Kingdom
19%
58%
3%
18%
91
flagUnknown
22%
60%
5%
10%
68

Gender

men24%
women22%
1.0
17%
19%
7.0
52%
54%
10.0
5%
4%
It depends on the temperature
23%
21%

Details

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Illustration: Steven Depolo
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