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The pH scale

The pH scale. pH scale. This scale is used to tell the concentration of H + ions versus OH - ions Things that are neutral are a 7 acids are below 7 and bases are above. pH scale. As you go from pH 7 to pH 8 there are 10 times more OH - ions

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The pH scale

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  1. The pH scale

  2. pH scale • This scale is used to tell the concentration of H+ ions versus OH- ions • Things that are neutral are a 7 acids are below 7 and bases are above

  3. pH scale • As you go from pH 7 to pH 8 there are 10 times more OH- ions • Every level of the pH scale represents a ten fold (ten times) increase in the concentration of the H+ or OH- ions

  4. pH Scale • So how much more acidic is lemon juice pH 2 than saliva pH 6 • 10 000! • How much more basic is bleach pH 13 than sea water pH 8

  5. Finish in class work • Pg 225 1-3

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