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.
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1.0
7.0
10.0
It depends on the temperature
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flagGreece
15%
26%
0%
57%
26
flagAustralia
5%
57%
0%
37%
35
flagPakistan
10%
50%
0%
40%
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flagthe Philippines
0%
60%
0%
40%
10
flagUkraine
23%
35%
2%
37%
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flagBelarus
0%
54%
9%
36%
11
flagthe United States
11%
46%
6%
33%
159
flagIndia
3%
61%
4%
30%
161
flagAustria
12%
56%
6%
25%
16
flagPoland
18%
52%
5%
22%
4524
flagGermany
13%
57%
8%
20%
59
flagNigeria
9%
63%
9%
18%
11
flagthe United Kingdom
20%
57%
5%
17%
40
flagRussia
32%
42%
7%
17%
28