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Cabbage lab

Cabbage lab. By Vanessa Velasco. Purpose. To measure the ph of various household materials by using a natural indicator to make an indicator chart. Pencil Ruler 10 plastic cups White vinegar Baking soda House hold ammonia Dropper Various house hold items. Materials. Knife

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Cabbage lab

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  1. Cabbage lab By Vanessa Velasco

  2. Purpose • To measure the ph of various household materials by using a natural indicator to make an indicator chart.

  3. Pencil Ruler 10 plastic cups White vinegar Baking soda House hold ammonia Dropper Various house hold items Materials • Knife • Red cabbage leaves • 1 cup measure • Hot water • 2 jars • Clean white cloth • Teaspoon • Tape • 3 sheets of white paper

  4. Put about 1 cm indicator to the three cups. To one cup add several drops of vinegar. Add a pinch of baking soda to the other. On the third and final cup add ammonia. Repeat on household items Procedure Put 1/2 cup of finley chopped red cabbage leaves in a and add 1/2 of hot water Strain the extract through a piece of cloth into a clean jar Tape 3 sheets of paper together. Draw a line 5 cm apart and label 1-14

  5. Pictures

  6. Conclusion • In this lab the purpose was to indicate hosehold items on a ph scale. It would tell whether it was acidic or basic. Most of the cleaning products were acidic. What i could have improved on was having clear cups because it was hard to identify them on a ph scale.

  7. Analyze and conclude • The color of the indicator was at a basic condition. • Some chemical changes that were responsible were vinegar,ammonia, baking soda,milk,lemon juice ,laundry detergent, dish detergent , and carbonated beverages. • Vinegar: acidic , ammonia: basic, baking soda: neutral, milk: neutral, lemon juice: acidic, laundry detergent: acidic,dish detergent:acidic, dish detergent:acidic.

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