Chemistry, asked by shubhamrathor4374, 9 months ago

o'heners method for the calculation of total hardness of water

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Answered by kingashu2004

0

Answer:

It takes 17.1 PPM to equal 1 GPG. If a test for hard water is measured in parts per million or milligrams per liter you can take the total hardness level and divide it by 17.1 to get hardness in grains per gallon. For example if your water test shows 250 mg/L hardness you actually have 14.62 grains per gallon.

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