Chapter 16

Question 1

The stronger the acid, the _______ the conjugate base

Answer 1

weaker

Question 2

What are the 6 strong acids?

Answer 2

HCl

HBr

HI

HClO₄

H₂SO₄

HNO₃

Question 3

Cations that are small and highly charged (3+) are always ___________________

Answer 3

Acidic

Question 4

For binary acids, acidity increases to the ______ and _________ on the periodic table

E.g. HCl > HF

Answer 4

right, down

Question 5

Which is more acidic, H₂SO₄ or H₂SO₃?

Answer 5

H₂SO₄

Acid strength for oxyacids increases as the number of oxygens attached to Y increases.

Question 6

Which is more acidic, HBrO or HClO?

Answer 6

HClO

Acid strength for oxyacids increases as electronegativity increases

Question 7

Which is a stronger base, S^2- or Se^2-

Answer 7

S^2-

The corresponding acids are H₂S and H₂Se. Between these two binary acids, H₂S is the weaker acid. The weaker the acid, the stronger the corresponding base.

Question 8

The weaker the acid, the _________ the corresponding base.

Answer 8

stronger

Question 9

For insoluble ionic hydroxides, the higher the pH, the _______ the solubility of the ionic hydroxide

Answer 9

Lower

Question 10

For insoluble ionic compounds that contain anions of weak acids, the lower the pH, the _________ the solubility.

Answer 10

Higher

E.g. BaCO₃ , CO₃^- is a weak base so it will be more soluble in an acidic solution

Question 11

A solution will precipitate if Q ___ Ksp

Answer 11

>

greater than