Lab: Measuring pH

Question 1

Did you read the Student Guide carefully?

Revolt · Accepted Answer

yes

Question 2

Calibrating the cabbage pH indicator means based on

Revolt · Accepted Answer

creating a color key; based on: creating a color key; .: have known pH values

Question 3

solutions that are acidicare basicare neutral✔ have known pH values.

Revolt · Accepted Answer

✔ have known pH values

Question 4

0.01 M HCl solution has a pH of 2. Suppose that during the experiment, both the universal pH indicator and the cabbage indicator turn orange-red for 0.01 M HCl. What can you conclude about the the cabbage indicator key?

Revolt · Accepted Answer

There was some sort of experimental error, because the indicators should never match.

Question 5

To determine the pH of a solution using a pH indicator paper, you need a .

Revolt · Accepted Answer

color key

Question 6

Which methods will help you properly identify pH with indicator paper? Check all that apply.

Revolt · Accepted Answer

Set a piece of pH paper in front of each solution before testing to keep organized.; Use a transfer pipet to remove a few drops from the solution to drop onto the paper.; Wait a minute or so before reading color.

Question 7

You will use a filter funnel in this experiment to .

Revolt · Accepted Answer

separate cabbage from liquid

Question 8

While transferring NaOH solution to the pH paper, you accidentally splash it onto your skin. Check all actions you should take.

Revolt · Accepted Answer

Tell your teacher right away.; Rinse the exposed skin with water.

Question 9

To determine the pH of a solution using a pH indicator paper, you need a .

Revolt · Accepted Answer

color key

Question 10

Which methods will help you properly identify pH with indicator paper? Check all that apply.

Revolt · Accepted Answer

Set a piece of pH paper in front of each solution before testing to keep organized.; Use a transfer pipet to remove a few drops from the solution to drop onto the paper.; Wait a minute or so before reading color.

Lab: Measuring pH Answers

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