5.06 - Lab Time - Acids And Bases Indicators.docx

5.06 - Lab Time - Acids And Bases Indicators.docx - 5.06...

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5.06 Lab Time: Acids & Bases Indicators Hypothesis Tea-Acids Lemon Juice-Acids Eye Drops-Base Detergent-Base Bleach-Base Initial Color or Solution Final Color or Solution pH range on test strip Acid/Base/ Neutral Bleach Light Green Yellow >12 Base Detergent Green Blue 8-10 Base Eye Drops Light Blue Blue 4-6 Acid Lemon Juice Yellow Red 1-3 Acid Tea Brown Purple 4-6 Acid
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Conclusion 1. Place the 5 substances in order of increasing pH — from most acidic to most basic. Tea, Lemon Juice, Eye Drops, Detergent, Bleach. 2. Orange juice has a pH of 4. What color would you expect the paper test strip to be after it is dipped in a sample of orange juice? (2 points) After the paper test strip is dipped into a sample of orange juice, it would be purple. 3. Determining the pH of substances such as purple grape juice and catsup using test strips can be difficult. Why? Determining the pH of substances such as purple grape juice and catsup using test strips can be difficult because it would be hard to discern the changes in colors.
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