Lab: Measuring pH Answers

Using logarithms, you determined the of 7 solutions ranging from strong acid to neutral to strong base.

You confirmed the pH values of the 7 sample solutions via the color of the pH indicator. You then used the known pH values to the cabbage pH indicator scale’s colors.

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The photo on the right shows 12 solutions with cabbage indicator added. Answer these questions based on your cabbage indicator chart and the colors shown.In which order are the solutions arranged, from left to right?

Which is the best reason for using an Erlenmeyer flask instead of another piece of glassware while filtering the cabbage solution?

Why would you use a solution, such as a cabbage pH indicator, to measure the pH of household items?

Scenario: You are testing two different household solutions with your cabbage indicator, using the color key to the right.One solution turns blue. A possible hydrogen ion concentration for this solution is:

Scenario: You are testing two different household solutions with your cabbage indicator, using the color key to the right.The second solution turns purple. A possible hydrogen ion concentration for this solution is:

Scenario: You are testing two different household solutions with your cabbage indicator, using the color key to the right.Using the results from the two previous questions:Solution One: 1 x 10 MSolution Two: 1 x 10 MThe hydrogen ion concentration of these two solutions differ from each other by a factor of .

How many acids are shown?

Identify the approximate color you would expect if you were to test each household item using a cabbage pH indicator. coffee, pH 5 baking soda solution, pH 9 bleach, pH 13 (strong base) toothpaste, pH 8 milk, pH 6.8 battery acid, pH 1, (strong acid)

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