What is the role of acid-base indicators in titrations?

Acid-Base Indicators in Titrations

Interactive Video
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Chemistry, Science
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10th - 12th Grade
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Hard

Sophia Harris
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To measure the temperature of the solution
To determine the equivalence point
To calculate the molarity of the solution
To neutralize the solution
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the protonated form, what color does the hypothetical indicator appear?
Blue
Green
Yellow
Red
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At a pH of 2, what is the predominant form of the indicator?
Deprotonated form
Ionized form
Protonated form
Neutral form
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color does the solution appear at a pH equal to the pKa value?
Orange
Yellow
Red
Green
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the approximate pH range over which the hypothetical indicator changes color?
4 to 6
3 to 5
2 to 4
1 to 3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to match the pKa value of an indicator to the pH of the equivalence point?
To ensure the solution remains colorless
To achieve a precise color change at the equivalence point
To increase the acidity of the solution
To decrease the basicity of the solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which indicator is suitable for a weak acid-strong base titration?
Phenolphthalein
Methyl red
Litmus
Bromothymol blue
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