PH Neutral some basic stuff.

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Presentation transcript:

pH Neutral some basic stuff

pH Neutral Terminology “Acidic” and “basic” describe the two extremes of one chemical property. “alkaline” = basic. Neutral = A substance that is neither acidic nor basic Mixing acids and bases will cancel out or neutralize their extreme effects. Pure water is neutral. But when chemicals are mixed with water, the mixture can become either acidic or basic.

pH Scale The pH scale measures how acidic or basic a substance is. pH scale ranges from 0 to 14. pH of 7 is neutral. pH less than 7 is acidic. pH greater than 7 is basic. Each number below 7 on the pH scale is ten times more acidic than the next higher number. For example, pH 4 is ten times more acidic than pH 5 and 100 times more acidic than pH 6. Acids have a sour taste, react with metals and can burn skin if strong enough. For numbers above 7 each number is ten times more basic than the next lower number. For example, pH 10 is ten times more basic than pH 9 and 100 times more basic than pH 8. Bases have a bitter taste, do not react with metal and can also burn the skin if strong enough.

Lab Follow your teacher’s instructions to complete the lab

Sample Reaction Plate