CHEM 151 Acid Base Review

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Review Objectives from CHEM 151:

After having reviewed, students should be able to:

1. Write the equation for an acid/base reaction (either ionization or neutralization) identifying the Brønsted – Lowry acids or bases present.
2. Given an acid or base, write the conjugate base or acid.
3. Explain the relationship between the strength of an acid and the strength of its conjugate base.
4. Recognize the common strong acids“:  HCl(aq), HBr(aq), HI(aq), HNO₃, H ₂SO₄, HClO₃, and HClO₄.
5. Recognize the common strong bases:  Group IA metal hydroxides, Ca(OH)₂ and Ba(OH)₂.
6. Calculate [H⁺], pH,  [OH^–], and/or pOH given the value of any one of the variables or the concentration of a strong acid or base.
7. Calculate all equilibrium concentrations and pH or pOH in a solution of a weak acid or base given the K_a or K_b
8. Calculate the K_a/K_b for a weak acid/base given the pH of a solution of known concentration.
9. Calculate percent ionization of an acid or base from initial concentrations and K_a or K_b values or vice-versa.
10. Interconvert between the K_a of an acid and the K_b of its conjugate base.
11. Write the balanced chemical equations for hydrolysis of a salt then predict whether the salt solution will be acidic, basic or neutral.
12. Calculate the pH of salt solutions.

Reading and Homework Exercises

Table of Contents from: OpenStax Chemistry 2e: Section 4.2 – Classifying Chemical Reactions and Chapter 14 – Acid-Base Equilibria

In this section, if you are asked to give an answer requiring scientific notation on a homework problem, enter it as follows:

Enter 2.45 X 10^-5 M as 2.45E-5 M

 

4.2 Classifying Chemical Reactions(read acid-base section only)

14.1 Brønsted-Lowry Acids and Bases

Section 4.2 and 14.1 Practice

Question 1a:

Question 1b:

Question 1c:

Question 1d:

Question 1e:

Question 1f:

Question 1g:

Question 1h:

Question 1i:

14.2 pH and pOH

Section 14.2 Practice

Question 2a:

Question 2b:

Question 2c:

Question 2d:

14.3 Relative Strengths of Acids and Bases

Section 14.3 Practice (It may help to skim section

14.5 Polyprotic Acids as well

Question 3a:

Question 3b:

Question 3c:

Question 3d:

Question 3e:

Question 3f:

Question 3g:

Question 3h:

Question 3i:

Question 3j:

Question 3k:

Question 3l:

14.4 Hydrolysis of Salts

Section 14.4 Practice

Question 4a:

Question 4b:

Question 4c: