Andrea is performing an experiment in which she needs to know when a strong acid is present. She is not sure which indicator to use, so she looks up the following table in her science textbook.
Indicator pH range
thymol Blue 1.2 - 2.8
phenol Red 6.4 - 8.0
phenolphthalein 8.0 - 10.0
trinitrobenzoic acid 12.0 - 13.4
According to the textbook, which indicator should Andrea use?
Hint: Neutral substances have a pH of 7. Acids have a pH that is less than 7, and bases have a pH that is greater than 7.
A.
phenolphthalein
B.
phenol Red
C.
thymol Blue
D.
trinitrobenzoic acid
Reset Submit
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Andrea is performing an experiment in which she needs to know when a strong acid is present. She is not sure which indicator to use, so she ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
What Type of chemical reaction is: BaCl2 + 2 AgNO3 - -> 2 AgCl + Ba (NO3) 2
Answers (1)
A gas sample at stp contains 1.15 g oxygen gas and 1.55 g nitrogen gas. what is the volume of the gas sample?
Answers (1)
What is the correct name for the compound named 1-chloro-3-pentyne
Answers (1)
The molar mass of argon is 40g / mol what is the molar mass of a gas if it effuses at 0.91 times the speed of argon gas
Answers (1)
How many kPa are in 2,150 mmHg? a. 2.83kPa b. 287kPa c. 1.61 x 10^4 kPa d. 2.18 x 10^5 kPa
Answers (1)
New Questions in Chemistry
What is the biggest challenge to carbon dating?
Answers (1)
To make a 6.50M solution, how many moles of solute will be needed if 12.0 liters of solution are required
Answers (1)
Compound made 3 + And 3-
Answers (1)
Based on the law of conversation of mass, how does the mass of reactants compare with the mass of products in a given reaction?
Answers (1)
How many grams of hydrogen are necessary to react completely with 50.0 g of nitrogen
Answers (2)