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Introduction to pH Measurement

kit #80

This series of simple, highly visual laboratory tests introduce students to the concept of pH. Students add drops of acid and base to a variety of pH indicators and observe how pH indicators can detect and differentiate acids and bases. Students are also introduced to the concept that acid and base discussions are not limited to chemistry but also extend to applications in biology and the study of the human body.


  • pH indicators can detect and differentiate acids and bases.
  • The pH scale is a method of measuring the relative strength of acids and bases.

Content List in Introduction to pH Measurement is as follows:

Quantity Description
12 Chemplates® w/spatula
1 Hydrochloric acid, Drop control bottle
1 Sodium hydroxide, Drop control bottle
1 Bromthymol blue , Drop control bottle
1 Phenol red, Drop control bottle
1 Phenolphthalein, Drop control bottle
1 Blue litmus paper, Vial
1 Red litmus paper, Vial
1 Universal indicator paper, Vial
50 Student Guides
1 Teacher’s Guide with MSDS
Number of students
Maximum 36 per class period
Number of groups
Maximum 12 groups per class period
Number of class periods
At least 5

To complete this kit requires one to two ~50-minute class periods.

Title Item # Price Quantity
Introduction to pH Measurement 80 $74.75
Introduction to pH Measurement REFRESH-A-KIT 80-RC $29.65