Match each of the solutions below with an expected pH value (assume the same concentration for all solutions . (12 points) A. _______ pH = 5.8) HCl B. _______pH = 12.8 HF C. _______pH = 3.1) NaOH D. _______pH = 8.4 NH3
Question
Match each of the solutions below with an expected pH value (assume the same concentration for all solutions . (12 points) A. _______ pH = 5.8) HCl B. _______pH = 12.8 HF C. _______pH = 3.1) NaOH D. _______pH = 8.4 NH3
Solution
A. HCl is a strong acid, so it would have a low pH value. However, a pH of 5.8 is relatively neutral, so HCl does not match with this pH value.
B. HF is a weak acid, so it would also have a low pH value. However, a pH of 12.8 is very basic, so HF does not match with this pH value.
C. NaOH is a strong base, so it would have a high pH value. A pH of 3.1 is very acidic, so NaOH does not match with this pH value.
D. NH3 is a weak base, so it would have a pH value above 7. A pH of 8.4 is slightly basic, so NH3 could match with this pH value.
Therefore, none of the given solutions match with the expected pH values. There seems to be a mistake in the question.
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