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
7%
35%
0%
57%
14
flagFrance
8%
50%
0%
41%
12
flagAustralia
6%
66%
0%
26%
15
flagItaly
18%
37%
6%
37%
16
flagthe United States
13%
49%
5%
31%
153
flagIndia
7%
60%
2%
29%
106
flagUkraine
17%
41%
11%
29%
17
flagNorway
6%
53%
6%
33%
15
flagGermany
24%
40%
3%
32%
65
flagthe Netherlands
38%
30%
0%
30%
13
flagPoland
19%
50%
5%
24%
4049
flagthe United Kingdom
20%
57%
4%
17%
95
flagRepublic of Ireland
40%
20%
10%
30%
10
flagUnknown
17%
63%
5%
13%
156

Gender

men23%
women21%
1.0
16%
19%
7.0
54%
54%
10.0
5%
4%
It depends on the temperature
23%
21%

Details

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Illustration: Steven Depolo
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