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?
Get 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 there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Where are atoms that tend to gain electrons located in the periodic table of the elements? A. on the left side B. on the right side C. in the middle columns D. starting on the fourth row
Answers (1)
An English unit used in pharmaceutical work is the grain (gr). There are 15 grains in 1 gram. An aspirin tablet contains 5.0 gr of aspirin. A 145 lb person takes two aspirin tablets.
Answers (1)
Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely throughout the entire lattice? A covalent B multiple C ionic D metallic
Answers (1)
If the length, width, and height of a box are 8.00 cm, 6.75 cm and 3.50 cm, respectively, what is the volume of the box in units of milliliters and liters?
Answers (2)
Which of the following correctly describes the general process of coal mining and refining? Select one: a. Coal is mined, washed, dried, and then separated from rock particles. b. Coal is mined, dryed, and crushed. c.
Answers (1)
New Questions in Chemistry
Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/4.00 of the original amount. How long ago was this plant alive?
Answers (1)
Balance this equation---> Fe (s) + O2 (g) - - - >FeO (s) (s) = solid (g) = gas
Answers (1)
During an endothermic phase change, what happens to the potential energy and the kinetic energy?
Answers (1)
What is the difference between pure substance, element, and compund
Answers (1)
Butane gas is used as the fuel in disposable lighters. It burn in oxygen to form carbon dioxide gas and water vapor. What mass of carbon dioxide is produced when 53.3 g of butane is burned in 103.9 g of oxygen
Answers (1)