Rain High pH Rainwater pH is very high this season. "Pure water has a pH of 7.0, or neutral. Rainwater is usually mildly acidic, with a pH of 5.5 to 6.0. It also has very low alkalinity. This low pH makes it easier for plants to absorb nutrients from the soil and encourages the activity of beneficial micro organisms in the soil." From: http://www.gardenguides.com/132241-ra... The pH scale is a simple numerical scale from 1 to 14. If you take a piece of Litmus paper and dip it in a solution (we'll go with rain water if you like) and it comes out neutral, the pH value would be 7, right in the middle. It would be neither acidic, nor alkaline, and that's how rainwater is supposed to be...pure. If pH is below 7, the water is acidic and if above 7 it is alkaline. Thus, values of 6 and 8 would be slightly acidic and slightly alkaline, respectively. A pH value of 1 or 14 would be an extremely dangerous substance (either very, very acidic or very very alkaline). The pH of modern rainwater is between 5.5 and 6.0 because of carbon dioxide that's dissolved in the atmosphere. This CO2 reacts with the H2O (water vapour) in the atmosphere for the following reaction: From: http://wiki.answers.com/Q/What_is_the... pH of Rain Water, Open Garden Soil & Tap Water, While Sheltered Soil Is Just Above Neutral ! Filmed: 27.4.12 following "April Showers" Rural Southern England UK. pH Lowers When Tap Water Is Left To Stand Overnight
Rain High pH - YouTube |
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| Education | Upload TimePublished on 27 Apr 2012 |
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