Name: ______________________________________
Period: ____
Acid/Base and Thermochemistry Test Review
Check whether the acid and/or base have the following properties:
Property
Acid
Base
Conducts electricity
Tastes sour
Tastes bitter
Reacts with metals to form H2
pH<7
pH 7
Feels slippery
Turns litmus paper red
Turns litmus paper blue
Proton acceptor
Proton donor
Complete the following table:
Acid
Hydrochloric acid
Nitric acid
Sulfuric acid
Phosphoric acid
Acetic acid
Hydronium ion
Complete the following table:
Base
Sodium hydroxide
Ammonia
Magnesium hydroxide
Sodium bicarbonate
Aluminum hydroxide
Formula
Formula
Conjugate Acid-Base Pairs: For the following reactions, label the acid and
base then the conjugate acid and base.
NH3 + HOH  NH4+ + OHH2SO4 + NH3  NH4+ + HSO4Write an equation that shows the reaction between bicarbonate, HCO3-, and
hydrochloric acid, HCl. Label the acid, the base, the conjugate acid, and the
conjugate base.
pH problems
1. What’s the pH of 0.03M NaOH?______ Is the NaOH acidic or basic?
2. What’s the [H+] and [OH-] of 0.12M HNO3?
3. What’s the pOH of a solution with a pH of 4.7? Is it acidic or basic?
4. What’s the [H+] and [OH-] of the solution in #3?
Titrations:
1. Can you explain titration—do you understand it’s based on a neutralization
reaction? Do you know the products of a neutralization reaction? Can you
explain what end point and equivalence point are? Can you perform
titration problems?
2. If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution,
what is the concentration of the HCl?
3. If it takes 25 mL of 0.05 M HCl to neutralize 345 mL of NaOH solution, what
is the concentration of the NaOH solution?
Summarize the three main acid-base theories in the table below.
ACID
BASE
Arrhenius
Brønsted-Lowry
For each of the following salts, determine if they are acidic, basic, neutral, or
cannot be determined.
Na2SO4
MgCl2
CaCrO4
FePO4
Define and give two examples of an endothermic reaction.
Define and give two examples of an exothermic reaction.
Write whether the enthalpy indicates an exothermic or endothermic reaction.
Δ H = –167.4 kJ
Δ H = 21.6 kJ
Δ H = –143.8 kJ
Δ H = –22.1 kJ
Δ H = 34.0 kJ
List all of the factors that affect the activation energy/reaction rate. Be sure to
know WHY each of them are important.
What is specific heat? What does it tell about a substance?
Aluminum has a specific heat of 0.900 J/(g•°C). How much energy is needed to
raise the temperature of a 625 g block of aluminum from 30.7°C to 82.1°C?
A 4.00 g sample of metal was heated from 0.00°C to 20.0°C, and was found to
have absorbed 35.2 J of heat. Calculate the specific heat and identify the metal.
How much energy is necessary to convert a 52.0g sample of ice at -20.0°C to
steam at 120.0°C? Follow your heating curve!!!
Heating Curves Label the following items on the heating curve:
1. Solid
3. Gas
4. Melting
5. Freezing
6. Evaporating
Temperature
2. Liquid
7. Condensing
8. Boiling Point
9. Freezing Point
Energy
Phase Diagrams Label the following items on the phase diagram:
10.
Solid
11.
Liquid
12.
Gas
13.
Melting
14.
Freezing
15.
Vaporizing
16.
Condensing
17.
Sublimation
18.
Deposition
19.
Triple Point
20.
Critical Point
Answer the following questions based on the phase diagram:
21. What is significant about the triple point?
22. What state is the substance in at room temperature and normal pressure?
23. What phase change would happen if the substance is held at a constant
pressure of 10 atm while the temperature changes from 30°C to 150°C?