Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Choices: True, False. Select all that are True. A solution that is made out of 1

ID: 924156 • Letter: C

Question

Choices: True, False. Select all that are True. A solution that is made out of 1.00mol/L ammonia and 0.50mol/L of ammonium chloride is a basic buffer. The pH at the equivalence point of a weak base with a strong acid is expected to be less than 7 because of the presentce of the conjugated acid in the water. You cannot prepare a buffer from nitric acid and sodium nitrate, but you can make one from nitrous acid and potassium nitrite One cannot prepare a buffer from a strong acid and its conjugated base, because a conjugated base of a strong acid cannot buffer; meaning cannot react in the reverse direction of the acid dissociation. You cannot prepare a buffer with a pH of 11.5 with trimethylamine and trimethylammonium chloride The pH of a buffer solution made out of 0.20mol/L hydrofluoric acid and 0.30mol/L sodiumfluoride is the same as a buffer solution that is made out of 0.10mol/L of acetic acid and 0.15mol/L of sodium acetate. The capacity of a buffer solution made out of 0.20mol/L hydrofluoric acid and 0.30mol/L sodiumfluoride is the higher than that of a buffer solution made out of 0.10mol/L of hydrofluoric acid and 0.15mol/L of sodiumfluoride. But the pH of the two buffers solutions is the same. A solution that is made out of 1.00mol/L ammonia and 0.05mol/L of ammonium chloide can act as a basic buffer. The pH at the equivalence point of a weak base with a strong acid is expected to be less than 7 because the acid that is added is very strong

Explanation / Answer

1)true

2)true

3)true

4)true

5)false

6)false

7)false

8)false

9)true

Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
Chat Now And Get Quote