Test 4 - Module 11: Acids and Bases

Question 1

According to Lewis:
Acid is a _____
Base is a _____

Answer 1

acid: electron acceptor
base: electron donor

Question 2

According to bronsted-lowry:
Acid is a ____
Base is a _____

Answer 2

Acid: proton donor
base: proton acceptor

Question 3

_____ completely ionize when dissolved in water

Answer 3

Strong acids and bases

Question 4

What are the 6 strong acids?

Answer 4

1. HCl
2. HBr
3. HNO3
4. HClO4
5. HI
6. H2SO4

Question 5

Strong acids have _____ conjugate bases

Answer 5

weak

Question 6

Weak acids have _____ conjugate bases

Answer 6

strong

Question 7

Water is _____ meaning it can be both an acid or a base

Answer 7

amphoteric

Question 8

The more H+ we have the more _____

Answer 8

acidic

Question 9

The pH scale is logarithmic so a change of 1 actually scales to a change by a factor of ____

Answer 9

10

Question 10

What is the pKa of water

Answer 10

16

Question 11

Acid strength is relative and depends on the ability of the group to give up a proton. This measure is known as the _____

Answer 11

acid-dissociation constant (Ka)

Question 12

the larger the Ka= the _____it is to remove the proton. meaning it is _____

Answer 12

easier; more acidic

Question 13

which one would be more acidic? Ka or pKa? why?

Answer 13

pKa, because it lowers the values

Question 14

Weak acids (do/do not) dissociate completely

Answer 14

do not