WorksheetsSolutions/Acid and Bases RETEST
Total questions: 45
Worksheet time: 1hrs 4mins
The table shows the pH of several solutions. Which solution is the most acidic?
vinegar
milk
water
bleach
Zn(OH)2 is an example of a...
acid
base
salt
water
H3PO4 is an example of a ...
acid
base
salt
non-electrolyte
Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?
lemon juice, milk, baking soda, bleach
bleach, baking soda, milk, lemon juice
milk, lemon juice, baking soda, bleach
baking soda, bleach, lemon juice, milk
Match
H+
Acid
OH-
Base
NaCl
Salt
Match the following
higher than 7
base
lower than 7
acid
7
neutral
Match these
strongly acidic
3.3 mountain dew
slightly acidic
6.7 milk
strongly basic (alkaline)
13 ammonia
slightly basic (alkaline)
7.35 human blood
Bases, also known as (a) will turn litmus paper (b) . This is because they have a pH (c) . They taste (d) .
Acids, also known as (a) , will turn litmus paper (b) . This is because they have a pH (c) . They taste (d) .
A sugar solution has a pH of 7. This means the sugar solution is:
acidic
basic
neutral
A wasp sting injects an alkaline substance into your skin. What could you use to neutralize it?
baking soda (pH = 8)
vinegar (pH = 2.5)
water (pH = 7)
What does pH measure?
strength of an acid
strength of a base
strength of both acids and bases
concentration of H+ ions
Solid or liquid that is being dissolved? (a)
Molarity is defined as ______ per _____.
grams solvent, mols solute
liters solution, mols solute
mols of solvent, liters solute
mols solute, liters solvent
Part of a solution that is the medium that does the dissolving.
solvent
solute
solubility
saturated
A solution not in equilibrium with a given dissolved substance in which more solute can be added.
saturated
unsaturated
super saturated
solvent
The moles of solute can be determined by multiplying the molarity of the solute by the volume of solvent.
True
False
How does a solution become supersaturated?
Vigorous stirring to dissolve more solute than usual.
Heat the solution to increase the solute then let it cool.
Add more solvent to lower the concentration.
Keep pouring solute in the solvent until it goes in.
What does "like dissolves like" mean?
polar solvents dissolve in polar solutes
polar solutes dissolve in polar solvents
non-polar solvents dissolve in polar solutes
non-polar solutes dissolve in polar solvents
Gases are more soluble at ______temps and _____pressures
high, low
low , high
high, high
low, low
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
0.8 M
1.5M
3.0M
6.0M
Oxidation is the _________ of electrons.
loss
gain
sharing
transfer
Reduction is the ___________ of electrons.
loss
gain
sharing
transfer
Mg → Mg2+ + 2e–
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
If the [H3O+] of a solution is 1 x 10-3 M, the pH is...
11
-3
3
1
If the pH of a solution is 8, the [H3O+] is...
1.0 x 10-6 M
8.0 x 101 M
1.0 x 108 M
1.0 x 10-8 M
If a solution has a [H+] of 1.00x10^-7, it must be a ...
Acid
Base
Neutral
