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WorksheetsAcids and bases quest review
Total questions: 49
Worksheet time: 32mins
An example of a nonelectrolyte is
C6H12O6(aq)
K2SO4(aq)
NaCl(aq)
HCl(aq)
Which of the following aqueous solutions is the best conductor of electricity?
0.10 M CH3OH
1.0 M CH3OH
0.10 M NaOH
1.0 M NaOH
Which substance, when dissolved in water, forms a solution that conducts an electric current?
C2H5OH
C6H12O6
C12H22O11
CH3COOH
Which compounds can be classified as electrolytes?
alcohols
alkynes
organic acids
saturated hydrocarbons
A substance is classified as an electrolyte because
it has a high melting point
it contains covalent bonds
its aqueous solution conducts an electric current
its aqueous solution has a pH value of 7
According to the Arrhenius theory, a substance that is classified as an acid will always yield
H+(aq)
K+(aq)
F-(aq)
I-(aq)
Unlike an acid, an aqueous solution of a base
causes some indicators to change color
conducts electricity
contains more H+ ions than OH- ions
contains more OH- ions than H+ ions
An Arrhenius base yields which ion as the only negative ion in an aqueous solution?
hydride ion
hydrogen ion
hydronium ion
hydroxide ion
The only positive ion found in H2SO4(aq) is the
ammonium ion
hydronium ion
hydroxide ion
sulfate ion
How are HNO3(aq) and CH3COOH(aq) similar?
They are Arrhenius acids and they turn blue litmus red.
They are Arrhenius acids and they turn red litmus blue.
They are Arrhenius bases and they turn blue litmus red.
They are Arrhenius bases and they turn red litmus blue.
Which pH change represents a hundredfold increase in the concentration of H3O+?
pH 5 to pH 7
pH 13 to pH 14
pH 3 to pH 1
pH 4 to pH 3
Which of these pH numbers indicates the highest level of acidity?
5
8
10
12
Given the following solutions: Solution A: pH of 10 Solution B: pH of 7 Solution C: pH of 5 Which list has the solutions placed in order of increasing H+ concentration?
A) A, B, C
B) B, A, C
C) C, A, B
D) C, B, A
As the pH of a solution is changed from 3 to 6, the concentration of hydronium ions
increases by a factor of 3
increases by a factor of 1000
decreases by a factor of 3
decreases by a factor of 1000
The ability of H2SO4(aq) to change blue litmus red is mainly due to the presence of
SO2 molecules
H2O molecules
H3O+(aq) ions
SO4^2-(aq) ions
What color is phenolphthalein in a solution that has a pH of 9?
blue
pink
white
colorless
In which solution will thymol blue indicator appear blue?
0.1 M CH3COOH
0.1 M KOH
0.1 M HCl
0.1 M H2SO4
An indicator was used to test a water solution with a pH of 12. Which indicator color would be observed?
colorless with litmus
red with litmus
colorless with phenolphthalein
pink with phenolphthalein
In a solution, litmus is blue. The pH of the solution could be
10
2
3
4
One acid-base theory defines a base as an
H⁺ donor
H⁺ acceptor
H donor
H acceptor
In the reaction: NH2⁻ + HOH ↔ NH3 + OH⁻ The acids in the forward reaction is...
HOH
NH3
OH⁻
NH2-
Given the balanced equation representing a reaction: NH3(g) + H2O(ℓ) → NH4⁺ (aq) + OH⁻(aq) According to one acid-base theory, the NH3(g) molecules act as
an acid because they accept H⁺ ions
an acid because they donate H⁺ ions
a base because they accept H⁺ ions
a base because they donate H⁺ ions
In the neutralization reaction between sulfuric acid + calcium hydroxide, yields water and
CaCl2
Ca2S
CaSO4
Ca(OH)2
Which compound could serve as a reactant in a neutralization reaction?
NaCl
KOH
CH3OH
CH3CHO
Equal volumes of 0.1 M NaOH and 0.1 M HCl are thoroughly mixed. The resulting solution has a pH closest to
5
7
3
9
Honors only-Potassium chloride, KCl, is a salt derived from the neutralization of a
Regents, pick D
A. weak acid and a weak base
B. weak acid and a strong base
C. strong acid and a weak base
D. strong acid and a strong base
Which reaction occurs when hydrogen ions react with hydroxide ions to form water?
substitution
saponification
ionization
neutralization
SKIP: Choose A
A
B
Skip: Choose A
A
B
Skip. Click A
A
B
Which volume of 0.10 M NaOH(aq) exactly neutralizes 15.0 milliliters of 0.20 M HNO3(aq)?
1.5 mL
7.5 mL
3.0 mL
30. mL
What volume of 0.500 M HNO3(aq) must completely react to neutralize 100.0 milliliters of 0.100 M KOH(aq)?
10.0 mL
20.0 mL
50.0 mL
500. mL
A student neutralized 16.4 milliliters of HCl by adding 12.7 milliliters of 0.620 M KOH. What was the molarity of the HCl acid?
0.168 M
0.480 M
0.620 M
0.801 M
During which process can 10.0 milliliters of a 0.05 M HCl(aq) solution be used to determine the unknown concentration of a given volume of NaOH(aq) solution?
evaporation
distillation
filtration
titration
Which process uses a volume of solution of known concentration to determine the concentration of another solution?
distillation
substitution
transmutation
titration
Skip. Choose A
A
B
skip pick a
A
B
Skip: Choose A
A
B
What is the color of the indicator thymol blue after it is added to an aqueous solution of vitamin C?
Yellow (since vitamin C is acidic and thymol blue is yellow in acidic solutions)
Blue (since vitamin C is basic and thymol blue is blue in basic solutions)
Red (since vitamin C is neutral and thymol blue is red in neutral solutions)
Green (since vitamin C is neutral and thymol blue is green in neutral solutions)
A 20.0-milliliter sample of HCl(aq) is completely neutralized by 32.0 milliliters of 0.50 M KOH(aq). According to the data, what is the calculated molarity of the HCl(aq)?
1280 M HCl
0.8 M HCl
0.3 M HCl
320 M HCl
In another trial, 40.0 milliliters of HCl(aq) is completely neutralized by 20.0 milliliters of this 0.10 M NaOH(aq). Calculate the molarity of the titrated acid in this trial.
0.05 M
8000 M
0.20 M
80 M
In one trial of an investigation, 50.0 milliliters of HCl(aq) of an unknown concentration is titrated with 0.10 M NaOH(aq) Which of the following is the balanced equation that represents this neutralization reaction?
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
HCl(aq) + NaOH(aq) → NaOH(aq) + H2O(l)
NaCl(aq) + NaOH(aq) → HCl(aq) + H2O(g)
HCl(aq) + H2O(aq) → NaCl(s) + NaOH(g)
According to Table J, which substance will react with an acid, to produce hydrogen gas?
Li
Cu
Ag
Au
Which is the correct set of acid properties:
sour taste, corrosive, change litmus from red to blue
sour taste, corrosive, change litmus from blue to red
sweet taste, slippery, change litmus from blue to red
sour taste, slippery, change litmus from blue to red
Which of the following will conduct electricity? Select all that apply
Acidic solutions
Basic solutions
Ionic solutions
Neutral covalent solutions
pH is the measure of the concentration of ______.
Acids
H+ ion
OH- ion
Bases
What scale is used to measure how acidic or basic a solution is?
Acid scale
pH scale
atom scale
Base scale
