pH scale

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6 Terms

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PH scale

This scale mesures the acidity or the basicity and is based on H+ and OH- concentration. Ranges from 0-14. 7 being neutral (pure water)

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As the pH decreases…

The H+ increases

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The most biological fluids are between

6 and 8

4
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A substance with a pH of 3 is…

1000 times more acidic than one with a pH of 6

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Buffers absorb and release H+

Helping keep the pH constant.

Ex. PH of blood 7.4 ( cells can maintain their pH even when acids or bases are added to them)

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Most buffers contain…

A weak acid and its corresponding base which accept or release H+