What is the first safety step Katie takes before starting the experiment?

Titration Techniques and Concepts

Interactive Video
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Chemistry, Science, Biology
•
11th - 12th Grade
•
Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Setting up the burette
Washing the pipette
Tying her hair up
Adding phenolphthalein
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adding phenolphthalein to the beaker?
To increase the pH
To indicate the end point of the titration
To act as a catalyst
To neutralize the solution
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to ensure there are no bubbles in the burette?
Bubbles increase the reaction rate
Bubbles change the color of the solution
Bubbles are necessary for the reaction
Bubbles can cause inaccurate volume readings
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the titration, what indicates that the reaction is complete?
The solution turns dark pink
The solution starts boiling
The solution remains light pink
The solution becomes colorless
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the pH range of acids?
Exactly 7
Less than 7
Equal to 7
More than 7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of sodium hydroxide in the titration?
It is the solvent
It is the indicator
It acts as a base
It acts as an acid
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the concentration of sodium hydroxide used in the experiment?
0.5 moles per liter
0.2 moles per liter
0.1 moles per liter
0.05 moles per liter
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