How to Measure for Acidity or Alkalinity

••• bandelette test image by YvesBonnet from

When testing the acidity or alkalinity of an item you are referring to the pH, also known as potential hydrogen. The pH of an item is measured by finding the concentration of hydrogen ions an item contains in moles. Measuring the acidity or alkalinity of an item comes in handy for many items such as foods, personal care products, soil and much more. The pH is best obtained in liquid form. A neutral item such as water is often mixed with the item being measured.

How to Measure for Acidity or Alkalinity

    Put a small amount of your item to be measured in a cup. You want to have enough product in the cup to produce an accurate reading.

    Add an equal amount of water to the cup. The water is used to provide a neutral liquid to test the amount of hydrogen ions present in the product.

    Mix the water and the product together well. The will make sure that they are evenly distributed amongst each other.

    Place the tip of the pH strip in the mixture. If you are using pH strips make sure all the squares are put in the mixture. If you are using litmus paper put in enough to see a color change if applicable.

    After a few seconds take out the strip and use the chart the strips came with to determine what pH the product was. It is as easy as matching the colors together and reading the number.

    Things You'll Need

    • Cup
    • Item to measure its pH
    • Pure water
    • Mixing spoon
    • Package of pH strips or litmus paper


    • If the pH reading is below seven the product is acidic. If the pH reading is above seven the mixture is alkaline. If the mixture is seven the product is neutral. When testing food items, more acidic foods are not desirable.

Related Articles

How to Make a Vitamin C Indicator
How to Raise the PH Level in Water
How to Tell If a Sample of Water Is Pure or Mixed
How to Measure the Acidity of Soft Drinks
How to Make Water Clear After Adding Food Coloring
Methods for Testing PH of Liquids
How to Detect the Presence of Insecticides in Fruits...
How to Standardize a pH Meter
How to Calculate Melting & Boiling Points Using Molality
What Color Does pH Paper Turn With Bleach?
What Is the Function of Litmus Paper?
Easy & Fast pH Experiments With Litmus
How to Dissolve EDTA in Water
How to Find Hydroxide Ion Concentration
Advantages of Using a pH Meter
Methods on How to Determine pH in pH Paper
How to Make a Bromothymol Blue Solution
How to Use Litmus Papers
How to Mix Calcium Chloride and Water