Acidic and basic are two extremes that describe a chemical property. Mixing acids and bases can cancel out or neutralize their effects. A substance that is neither acidic nor basic is neutral. A pH scale measures how basic or acidic a substance is. A pH scale ranges from 0 to 14. A pH that is 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. each whole pH value below 7 is ten times more acidic than the next higher value. Each whole pH value below 7 is ten times more acidic than the next higher value. Substances that are in the acidic range usually sour to the taste, whereas bases are usually bitter and slippery. An indicator is a substance or chemical that changes color in the presence of am acid and/or base. A Universal Indicator is not as accurate as Full Range pH strips because it only ranges from 4 to 11.
Thursday, 17 January 2013
pH Scale
Acidic and basic are two extremes that describe a chemical property. Mixing acids and bases can cancel out or neutralize their effects. A substance that is neither acidic nor basic is neutral. A pH scale measures how basic or acidic a substance is. A pH scale ranges from 0 to 14. A pH that is 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. each whole pH value below 7 is ten times more acidic than the next higher value. Each whole pH value below 7 is ten times more acidic than the next higher value. Substances that are in the acidic range usually sour to the taste, whereas bases are usually bitter and slippery. An indicator is a substance or chemical that changes color in the presence of am acid and/or base. A Universal Indicator is not as accurate as Full Range pH strips because it only ranges from 4 to 11.
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