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C1 4.1-4.2 Acids and Alkalis

Published on Dec 03, 2015

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1.

Acids and Alkalis

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2.

Using acids and alkalis safely

What precautions should we take?
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3.

Concentration

High = Strong/concentrated Low = Weak/dilute
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4.

pH Scale

Low pH (1-3) = Strong acid        High pH (12-14) = Strong alkali
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5.

pH indicators

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Rich Pepperell