this is ™ 100 200 300 400 500 review problems colligative properties ph titrations and reactions...
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THIS
IS ™
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Reviewproblems
Colligative properties pH Titrations and
reactionsElectro
chemisty
Acids and Bases
™
Why do elements in a group have similar chemical
characteristics
A 100
Because they all have the same number of valence
electrons
A 100
What is the difference between ionic and covalent bonds in terms of electrons?
A 200
Covalent Bonds – Electrons are shared
between atoms
Ionic Bonds – Electrons are transferred from one atom to
another.
A 200
What is an isotope?
A 300
An atom that has different amounts of neutrons.
A 300
Define endothermic and exothermic reactions.
A 400
Exothermic reactions are reactions where energy is a released, ∆H is negative and
reactions generally feel warm.
Endothermic reactions are reactions where energy is
absorbed, ∆H is positive and reactions generally feel cold.
A 400
How many protons and neutrons are in an element of Carbon-14?
A 500
6 Protons; 8 neutrons
A 500
What are the three colligative properties?
B 100
Vapor Pressure Decreasing
Boiling Point Elevation
Freezing Point Depression
B 100
Which will lower the freezing point the most and why?
NaCl or C6H12O6
B 200
NaCl, because it dissociates into two particles and will
hold solvent particles in the liquid more effectively that
molecular substances that do not dissociate.
B 200
Name two instances where colligative properties are used in
everyday life.
B 300
B 300
Road Salt
Anti-Freeze in cars
Other responses will be judged by Ms. Jensen
What is the freezing point and boiling point of a 0.5 m
aqueous MgSO4 solution?
B 400
Freezing point: -1.86 degrees
Boiling point: 100.5 degrees
B 400
What is the boiling point of a solution made from 20.0 g of
CO2 in 400 g of water?
B 500
Boiling point: 100.5 degrees
B 500
Find the pH if
[H+] = 1 x 10 -9 M
And tell if the solution is acidic or basic
C 100
C 100
9; basic
C 200
What is the pH if [OH-] = 1 x 10 -6 M
and tell if it is acidic or basic
8; basic
C 200
Find the pH of a 2.6 x 10-3 M HCl solution and tell if it is
acidic or basic
C 300
2.6 ; acidic
C 300
DAILY DOUBLE
C 400
DAILY DOUBLE
Place A Wager
Find the pH a 6.7 x 10-2 Ca(OH)2 solution and tell if it
is acidic or basic
C 400
13.1; basic
C 400
If a solution has a pH of 6.7, find the hydrogen ion concentration.
Is this acidic or basic?
C 500
2 x 10 -7; acidic
C 500
What is a titration?
D 100
When an acid and a base is added together until they are
equivalent to find an unknown concentration
D 100
What is the molarity of an HCl solution if 30 mL is
needed to neutralize 20 mL of a 0.45 M NaOH solution
D 200
0.3 M
D 200
What is the molarity of an H3PO4 solution if 20 mL is
completely titrated by 45 mL of a 0.14 M NaOH solution?
D 300
0.105 M
D 300
Write a balanced reaction when magnesium hydroxide
and nitric acid react
D 400
Mg(OH)2 +2HNO3 Mg(NO3)2 + 2H2O
D 400
Write a balanced reaction when sodium reacts with
hydrobromic acid
D 500
2Na +2 HBr 2NaBr + H2.
D 500
Is this reaction a spontaneous redox reaction?
Mg + Sn2+ Mg2+ + Sn
E 100
Yes, Sn is reduced and is above magnesium and on reduction potential chart
E 100
How will electrons flow in a Sr/Sr 2+//Zn/Zn 2+
electrochemical cell?
E 200
Zinc
E 200
What are the oxidation numbers in NO3
-
E 300
+5, -2
E 300
What is oxidation?
E 400
How many volts can a
Pb/Pb2+ //Zn/Zn2+ cell
produce and
what neutral metal is made?
E 500
0.63 V; Pb
E 500
F 100
What makes a substance an acid?
The ability to dissociate into H+ ions.
F 100
Name the following and tell if it is a strong or weak acid or
base
HClO2
F 200
Chlorous acid; weak acid
F 200
What is the [OH-] in a neutral solution?
F 300
1 x10-7
F 300
Name the following and tell if it is a weak or strong acid or
base
Fe(OH)3
F 400
Iron (III) hydroxide
Weak base
F 400
Which of the following would be the best conductor
of electricity and why?
HNO3, H2S, Mg(OH)2
F 500
HNO3; because it is a strong acid so it ionizes completely
putting a lot of ions in solution
F 500
The Final Jeopardy Category is:
Acids and bases
Click on screen to begin
Which solution will have the most hydrogen ion?
pH = 9
pH= 2
Click on screen to continue
pH = 2
Click on screen to continue
Thank You for Playing Jeopardy!
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