Diagram the pH scale 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Left:

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Presentation transcript:

Diagram the pH scale 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Left:

Define: Acid Base 9 10 20 40 30 8 6 2 3 4 5 7 50 60 140 180 120 130 70 170 1 160 150 100 110 90 80 Seconds Left:

Acid: A solution that has an excess of H+ ions. Base: A solution that has an excess of OH- ions. Another word for base is alkali.

What is the purpose of the pH scale? 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Remaining:

to measure how acidic or basic a liquid is.