Vernier Software and Technology
Vernier Software & Technology

The Acidity of Juice and Soft Drinks


Soft drinks are somewhat acidic. Along with “carbonation” (carbonic acid), many soft drinks contain citric acid and/or phosphoric acid. Fruits and fruit juices also contain acids, such as citric acid (oranges and other citrus fruits), tartaric acid (grapes), or malic acid (apples).


The objective of this investigation is to choose a soft drink and/or a fruit juice and determine its acid concentration. Depending on the beverage that you test, it may also be possible to identify the acid, or acids, that are present in the beverage.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Experiment 4 from Vernier Chemistry Investigations for Use with AP* Chemistry Lab Book

<i>Vernier Chemistry Investigations for Use with AP* Chemistry</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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