Red cabbage is an organic indicator for acids and bases. In the pictures above, which test tube(s) may have ammonia dissolved in
it?
A) Ammonia is probably in the middle since it is naturally a gas and will evaporate off leaving a neutral solution with pH = 7.
B) Ammonia could be in a couple of the test tubes on the right since it is a acid.
C) Ammonia could be in the middle or the right test tubes since it is a weak to moderate base.
D) Ammonia may be in one of the test tubes on the left since the pH of ammonia is below 7.
The image is
A) Ammonia is probably in the middle since it is naturally a gas and will evaporate off leaving a neutral solution with pH = 7.
B) Ammonia could be in a couple of the test tubes on the right since it is a acid.
C) Ammonia could be in the middle or the right test tubes since it is a weak to moderate base.
D) Ammonia may be in one of the test tubes on the left since the pH of ammonia is below 7.
The image is
2 answers:
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Answer:
Explanation:
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Answer: Molecular mass of the phenol is 94g/mol.
Explanation:
Phenol is an active ingredient in some oral anesthetics used in sore throat sprays.It is used as anesthetics to cure minor sour throat pain , minor mouth irritations etc.
For Example : Cramex , Chloraseptic sprays contains phenol as an active ingredient.
Phenol has a molecular formula of
Molecular mass of the phenol = 6(mass of carbon)+5(mass of hydrogen)+1(mass of oxygen)+1(mass of hydrogen) = 6(12)+5(1)+1(16)+(1) = 94 g/mol