Unit 8: Acids and Bases

Question 1

What equation do you use when determining the pH of a solution based on concentrations

Answer 1

-log[H+]

Question 2

What equation do you use when determining the pOH of a solution based on concentrations

Answer 2

-log[OH-]

Question 3

What is the Brønsted–Lowry definition of an acid/base

Answer 3

Acids will donate a H+ ion and bases will accept this ion creating a positive molecule

Question 4

What are conjugate acids/bases

Answer 4

In the event of a reverse reaction the Brønsted–Lowry definition is applied to the products of an acid base reaction

Question 5

What are the characterizations of a neutralization reaction

Answer 5

An acid and base react to form an ionic salt and water

Question 6

What are the strong acid ions

Answer 6

Cl-, Br-, I-, NO3-, ClO4-, SO4-

Question 7

What are the strong base ions

Answer 7

Li+, Na+, K+, Ca+, Sr+, Ba+

Question 8

How can the Kw of water equation find the K of either an acid/base

Answer 8

Kw= Ka x Kb
Ka= Kw/Kb
OR
Kb= Kw/Ka

Question 9

What is the equation for finding the pH of a buffer

Answer 9

pKa + log [A-]/[HA]

Question 10

How do you determine a buffer

Answer 10

adding the conjugate base of a weak acid in excess
adding a strong acid to a weak base
adding a strong base to a weak acid