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Because water absorb easily carbon dioxide and other gases (sulfur and nitrogen oxides) from the atmosphere.
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Why does rainwater have a much lower pH than pure water?
The reaction of carbon dioxide with water droplets in the atmosphere makes rain naturally mildly acidic. As a result, "normal rain" has a pH of about 5.6 rather than a neutral pH of 7.
What is the pH value of rainwater?
The pH of rainwater is normally from 6 - 6.5. Acid rain is rain with a pH of 5 and below.You have to use logic if water is 7 then rain water will be higher or lower so the is 6.5
Acid have a pH below 7?
Yes. Acids have a pH below 7.
Do acids have a PH above or below 7?
No, acids have a pH less than 7.
What is pH below 7 called?
Anything with a PH below 7 is an acid.
What is the pH value of unpolluted rainwater?
Pure water has a ph of 7.
Which gas will cause rainwater to have a pH of 6.0?
A PH of 7 is neutral, a PH falling below this means that the water is acidic. Carbon dioxide and SO2 are common gases found in the air which, when when dissolved in rainwater, will cause it to become acidic and thus lower the PH.
Why does rainwater have a much lower pH than pure water?
The reaction of carbon dioxide with water droplets in the atmosphere makes rain naturally mildly acidic. As a result, "normal rain" has a pH of about 5.6 rather than a neutral pH of 7.
What is the pH value of rainwater?
The pH of rainwater is normally from 6 - 6.5. Acid rain is rain with a pH of 5 and below.You have to use logic if water is 7 then rain water will be higher or lower so the is 6.5
Acid have a pH below 7?
Yes. Acids have a pH below 7.
Do acids have a PH above or below 7?
No, acids have a pH less than 7.
What is pH below 7 called?
Anything with a PH below 7 is an acid.
Is rainwater natrually acidic?
Yes, rainwater is naturally slightly acidic due to the presence of carbon dioxide in the atmosphere. Carbon dioxide mixes with rainwater to form carbonic acid, which lowers the pH of the rainwater. However, human activities, such as emissions from burning fossil fuels, can increase the acidity of rainwater to harmful levels, leading to acid rain.
How rainwater is affect to nature if pH becomes less than 7?
The pH value of rainwater has always been below 7 because of carbon dioxide (very weak acid forming, present in normal air) dissolving in it. (pH = 5.7 by carbonic acid)Acid rain however is more acidified by nitric and sulfuric acids in industrially polluted air, both acids in minute amounts but of much stronger acidifying power. pH
What kind of solution has a pH below 7?
Any solution that has a pH below 7 is classified as acidic.
What kind of solution has a pH above 7 and what kind has a pH below 7?
pH above 7 = a base or alkaline solutionpH below 7 = acid or acidic solution
What pH acidic?
anything below pH 7
