Dip a ph test strip into the liquid.
Ph paper test for acidity.
Testing for ph is an essential part of many chemistry and biology experiments.
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Ph test strips and color charts can be purchased at a local hardware store.
Numbers below 7 represent acidic values and numbers above 7 represent basic or alkaline values.
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Method 1 making homemade ph paper with cabbage.
Note that 8 3 is alkaline red litmus paper can indicate alkalinity with a change to blue.
Using ph paper a soil ph scale ranges from 0 to 14.
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This test can be done by coating paper strips with dyes that will change into different colors in the presence of an acid or a base.
Initially litmus paper is either red or blue.
By using a simple piece of paper called a ph test strip you can see color keyed results at a glance.
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Leave the test strip in the liquid for about 10 to 20 seconds so that a reaction has time to occur.
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Read the test strip and compare the results with the color chart included with the ph papers to determine the acidity of the food.