WorksheetsQuiz Acids, bases, pH_Hon
Total questions: 26
Worksheet time: 26mins
CsOH is classified as a:
strong acid
weak acid
strong base
weak base
Which of the following correctly identifies an Acid-Conjugate Base Pair?
HH4+ , OH-
H2O , OH-
CaCO3 ,CaCl2
HNO3 , H2SO4
According to Bronsted-Lowry, what is the definition of an BASE?
a substance that donates a hydrogen (H+) ion
a substance that donates a hydroxide (OH-) ion
a substance that accepts a hydrogen (H+) ion
a substance that accepts a hydroxide (OH-) ion
HCI (acid) / H3O+ (conjugate base)
HCI (acid) / CI- (conjugate base)
HCI (base) / CI- (conjugate acid)
HCI (base) / H3O+ (conjugate acid)
H+
K+
OH-
H-
According to Arrhenius, what is the definition of an ACID?
a substance that contains hydroxide and ionizes to produce OH-
a substance that contains hydrogen and ionizes to produce H+
a substance that contains hydrogen and ionizes to produce OH-
a substance that contains hydroxide and ionizes to produce H+
Which of the following is true .
Acids and bases form hydroxide ions in solution
Acids form hydroxide ions and bases hydrogen ions in solution
Acids form hydrogen ions in solution, bases do not form ions in solution
Acids form hydrogen ions in solution and bases hydroxide ions
Acid rain is caused by
pollutants in the air such as SO2 and NO2 reacting with oxygen
acids in the rain reacting with rocks containing carbonates
pollutants in the air such as SO2 and NO2 reacting with water
acids from burning of fossil fuels reacting with water
NH3 + H2O --> NH4+ + OH-
What is H2O in this reaction?
acid
base
conjugate acid
conjugate base
A substance that is 3 on the pH scale would be a(n):
acid
base
neutral
solute
A pH of 3 is how many times more acidic than a pH of 5?
2
20
10
100
A solution has a pH of 7.0. What would happen to the pH if H+ ions were added?
pH increase
pH is not affected by the concentration of H+ ions
pH would stay the same
pH would decrease
What is being donated/accepted between conjugate acid-base pairs?
a hydrogen (H+) ion
a hydroxide (OH-) ion
hydrogen H
oxygen O
What does pH measure?
the amount of hydrogen (H+) ions
the amount of hydroxide (OH-) ions
amount of water
all of the above
If pure water is added to an acid with a pH of 3, what happens to the pH of the solution?
the pH increases to above 3
the pH decreases to below 3
the pH stays the same at 3
not enough information
A chemical has a pH = 6. It would be best described as
Strong acid
Strong base
Weak acid
Weak base
An example of an amphoteric substance is
Cl1-
H2
SO4 2-
H2O
Could CH3COO- act as a base when placed in water?
Yes, because it can accept a H+
Yes, because it can donate a H+
No, because it cannot donate a H+
No, because it cannot accept a H+
Acid
Base
Neutral
Amphoteric
Select the formula for the following: carbonic acid
H2CO3
H2CrO4
H2C2O4
HCO3
Select the name for the following acid: HNO2
hydronitrous acid
hydrogen nitrogen oxygen
nitrous acid
hyponitrous acid
Sulfurous acid
Sulfuric acid
Hydrosulfuric acid
Hydrosulfate acid
HBr
HBrO4
HBrO3
HBr2
NaOH
Na(OH)2
NaH
NaOCH
Calcium hydroxide
Calcium (I) hydroxide
incorrect formula
calcium hydrate oxide
