Acids & Bases Review
Presentation
•
Chemistry
•
10th Grade
•
Medium
+1
Standards-aligned
Leslie Dunham
Used 4+ times
FREE Resource
11 Slides • 18 Questions
1
Acids & Bases Review
By Leslie Dunham
2
Water breaks into ions
H2O --> H+ + OH-
Acids have more H+ ions
Bases have more OH- ions
Neutral have equal amount of both
Acid or base?
3
Acids have a pH of less than 7
Other characteristics include sour taste, reacts with metals to form hydrogen gas, conduct electricity
Characteristics of acids
4
Acids have a pH of greater than 7
Other characteristics include bitter taste, slippery feeling, conduct electricity
Characteristics of bases
5
Multiple Choice
Milk is a very weak acid. What might its pH value be?
6.5
7.8
4.2
12.2
6
Multiple Choice
Which of the following are properties of acids?
They conduct electricity when dissolved in water
They taste sour
They react with metals to produce hydrogen gas
All of the answer choices are correct
7
Multiple Choice
Which of the following is a property of a base?
bitter taste
reacts with metals
salty
sour taste
8
Multiple Choice
The strongest bases have pH values close to
0
14
7
5
9
Acids release H+ in solution
Bases release OH- in solution
Arrhenius acids & bases
10
Acid - a substance that can donate an H+ (proton)
Base - a substance that can accept an H+ (proton)
Bronsted Lowry Acid and Base
11
Conjugate Acid - formed from a base by addition of an H+ (proton)
Conjugate Base - formed from an acid by loss of an H+ (proton)
Conjugate acid and base
12
Multiple Choice
13
Multiple Choice
According to the Arrhenius theory, an acid is a substance that
changes litmus from red to blue
changes phenolphthalein from colorless to pink
produces hydronium ions as the only positive ions in an aqueous solution
produces hydroxide ions as the only negative ions in an aqueous solution
14
Multiple Choice
An arrhenius base
produces H+ ions
produces OH- ions
is insoluble
has an i of 2
15
Multiple Choice
A Bronsted Lowry acid:
donates H+ to another substance
accepts H+ from another substance
produces H+
produces OH-
16
Multiple Choice
A Bronsted Lowry base:
donates H+ to another substance
accepts H+ from another substance
produces H+
produces OH-
17
Multiple Choice
In the equation below, what is the Bronsted Lowry acid (donates H+)?
HCl + NH3 → Cl- + NH4+
HCl
NH3
Cl-
NH4+
18
Multiple Choice
In the equation below, what is the Bronsted Lowry base (accepts H+)?
HCl + NH3 → Cl- + NH4+
HCl
NH3
Cl-
NH4+
19
Strong acids and bases ionize COMPLETELY in solution
Weak acids and bases DO NOT ionize completely in solution
Weak vs strong acids & bases
20
Measure of the strength of acids and bases
pH = power of hydrogen
Determined by concentration of H+ ions
pH scale
21
Measures strength of OH-
pH + pOH = 14
pOH scale
22
Reactions between an acid and a base that eliminate acid/base properties
Acid + Base --> Salt + H2O
Always neutralize using a strong acid or base
Neutralization
23
Multiple Choice
HBr is a strong acid and HF is a weak acid. Which of the following statements is true?
HBr would partially dissociate.
They both have the same pH.
HBr has a lower pH than HF.
HBr has a higher pH than HF.
24
Multiple Choice
The following solution represents a...
strong acid
strong base
weak acid
weak base
25
Multiple Choice
The following solution represents a...
strong acid
strong base
weak acid
weak base
26
Multiple Choice
Which of the following is the correct definition for a strong acid?
Partially dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is reversible
Partially dissociates into ions when dissolved in water and the change is reversible
27
Multiple Choice
28
Multiple Choice
29
Multiple Choice
Acids & Bases Review
By Leslie Dunham
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