Author Question: Which of the following is true about the pH of a dilute solution of sulfuric acid? (Read 31 times)

maegan_martin · **on:** Mar 21, 2021

Question 1

Which of the following is the strongest base? (K_b for NH₃ is 1.8

10^–5, K_a2 for H₂SO₄ is 1.2

10^–2, K_a3 for H₃PO₄ is 4.8

10^–13)
NH₃, HSO₄^–, PO₄^3–, or NO₃^–

◦ NH₃

◦ HSO₄^–

◦ NO₃^–

◦ PO₄^3–

◦ Two of these are equally strong.

Question 2

Which of the following is true about the pH of a dilute solution of sulfuric acid?

◦ The pH is completely controlled by the first dissociation.
◦ The pH is completely controlled by the second dissociation.
◦ The pH is partially controlled by the second dissociation.
◦ The first and second dissociation contribute equally to the pH.
◦ The pH cannot be calculated.

paavo · **Reply #1 on:** Mar 21, 2021

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