Acid & Base Flashcards
Many medicines have a bitter taste which manufacturers attempt to disguise. Many medicines are probably
bases
Which substance has the lowest pH?
A) lemon juice*
B) blood
C) unpolluted rainwater
D) NaOH (4% solution)
Sodium bicarbonate is an old standby antacid. It is not recommended for persons suffering from high blood pressure because
of the presence of sodium ion
Sodium bicarbonate is the common name for what compound?
sodium hydrogen carbonate
A common name for hydrochloric acid is
muriatic acid
Which of the following is a hydroxide ion?
A) H+
B) H3O+
C) OH-*
D) H2O-
Which is a weak base in aqueous solution?
A) HCN
B) KOH
C) NaOH
D) NH3*
an acid is strong if
ionizes completely in water
Which of the following is an example of a nonmetal oxide?
A) K2O
B) CO2*
C) NaOH
D) H2SO4
A solution with a pH of 10 has a hydronium ion concentration of
10-10 mol/L.
Phosphoric acid is added to many popular beverages to give them a tart flavor. The formula of phosphoric acid is
H3PO4
A solution of toilet bowl cleaner has a pH of 13. The solution is
strongly basic
Which of the following is NOT true of the Arrhenius theory?
Acids are defined as compounds that produce OH- ions in water solution
Ammonia is classified as a weak base in water. This means that it produces
a relatively small fraction of the maximum number of possible hydroxide ions.
The pH of rain collected on a remote island in the Pacific is assumed to be unaffected by human pollution. The pH of the rainwater will be
less than 7
A compound that changes color when it is placed into an acidic or a basic solution is
an acid-base indicator
Sodium hydroxide is classified as a strong base in water. This means that it produces
100% of the maximum number of possible hydroxide ions.
Most of the sulfuric acid produced in this country is used for
manufacturing fertilizer
Which of the following acids is responsible for the sour taste of yogurt?
lactic
A mixture of a weak acid and its conjugate base forms a(n)
buffer
Acid rain is caused by acidic pollutants in the air. Which of the following pollutants does NOT contribute to acid rain?
ammonia, NH3
All of the following are strong acids EXCEPT
A) acetic acid.*
B) sulfuric acid.
C) nitric acid.
D) hydrochloric acid
Sulfuric acid is the leading chemical produced and used industrially. What is the formula for sulfuric acid?
H2(SO)4
HCN is classified as a weak acid in water. This means that it produces
a relatively small fraction of the maximum number of possible hydronium ions
