WorksheetsAcids-Bases 2021-2022
Total questions: 20
Worksheet time: 25mins
pH is the measure of the concentration of ______.
Acids
H+ ion
OH- ion
Bases
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
What is being donated/accepted between conjugate acid-base pairs?
a hydrogen (H+) ion
a hydroxide (OH-) ion
water
a neutron
True or false: bases are sometimes called alkaline.
True
False
Neutral solutions have a pH of:
0
1
7
14
True or false: a neutral solution has equal amounts of H+ and OH-.
True
False
Ammonia is found in many household products, including window cleaner. What is the pH of ammonia?
It's acidic.
It's basic.
It's neutral.
HCl is acidic in:
in gaseous state
in benzene solution
in aqueous solution
in any of these
in aqueous solution, H+ ions exist as
H30+
H9O4+
Neither of these
either H30+ or H9O4+
The pH of 4 solutions were measured in a lab. Which solution is the most acidic?
A chemical reaction between an acid and a base, forming a salt and water is known as ____.
ionization
concentration
neutralization
animation
The buffer solution is able to maintain pH by some events, except . . .
The addition of a little acid
The addition of a little base
Dilution
Addition of water
The addition of excess acid
A Bronsted-Lowry Acid _____________
donates a proton
accepts a proton
donates an electron
accepts an electron
A Lewis base ________________
is an electron-pair donor.
is an electron pair acceptor.
is a proton donor.
accepts proton.
All Lewis acids are also Bronsted-Lowry acids.
True
False
A Lewis base is also called a _______ .
nucleophile
electrophile
protophile
protodonator
Which of the following is a buffer chemical in the body? (may have multiple answers)
bicarbonate
phosphate
sodium chloride
haemoglobin
potassium
To measure blood pH accurately and precisely, _________ method must be performed.
pH meter (potentiometric method)
lithmus paper
indicator
pH test strips
