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1) Watch the video below to see how the pH of a substance can be measured quantitatively rather than using pH indicators.
2) Explore the Macro tab of the PhET simulation.
3) Try to come up with the relationships between the following variables:
pH and the type of substance
pH and volume of water
pH and volume of substance
4) Try to explain the relationships you have observed by commenting on the particles involved at the microscopic level.
5) Research the types of substances in your investigation as well as their pH range in a specific environment and their impact.
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