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acidbase_lab - HOUSEHOLD ACIDS BASES LAB Many common...

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HOUSEHOLD ACIDS & BASES LAB Many common household solutions contain acids and bases. Acid-base indicators, such as litmus and red cabbage juice, turn different colors in acidic and basic solutions. Thus, they indicate whether a solution is acidic or basic. The acidity of a solution can be expressed using the pH scale. Acidic solutions have pH values less than 7, basic solutions have pH values greater than 7, and neutral solutions have a pH value equal to 7. In this experiment, you will a pH meter to determine the pH values of common household substances. After testing these same substances with litmus and red cabbage juice, you will determine how these indicators change colors across the pH range. SAFETY CAUTION! Ammonia is toxic and irritating to the eyes. Drain cleaner is corrosive. Handle these solutions with care. Do not allow these solutions to touch your skin or clothing. PROCEDURE 1. Obtain and wear goggles. CAUTION: Do not eat or drink in the laboratory!
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