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WorksheetsUnit 5 Solutions with Acids & Bases
Total questions: 20
Worksheet time: 19mins
Solute
The part of the solution that is being dissolved
Solvent
The part of the solution that is dissolving
Dilute
Contains more solvent than solute
Concentrate
Contains more solute than solvent
Supersaturated
A solution that has more solute than can be dissolved
Saturated
A solution that has dissolved the max amount of solute
Unsaturated
A solution that can still dissolve more solute
What is the molarity of a solution containing 2.50 moles in 35 mL of solution?
0.0875
0.074
14
71.4
What would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?
390M
230M
0.43M
0.26M
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
7.5 mL
15 mL
1333 mL
200 mL
According to the solubility curve, which solution is saturated at 30°C?
10 grams of KClO3 in 100 grams of water
10 grams of KClO3 in 200 grams of water
30 grams of NaCl in 100 grams of water
30 grams of NaCl in 200 grams of water
Based on the solubility curve, what is the maximum number of grams of KCI(s) that will dissolve in 200 grams of water at 50°C to produce a saturated solution?
38g
42g
58g
84g
When 50 grams of KCl is dissolved in water at 50 ºC, the solution can be correctly described as:
supersaturated
unsaturated
saturated
An unsaturated solution is formed when 80 grams of a salt is dissolved in 100 grams of water at 40°C. This salt could be
KCl
KNO3
NaCl
NaNO3
An acid will make blue litmus paper turn red and bases will turn red litmus paper blue. Using the pH scale and your knowledge of acids and bases, identify what your mystery substance could be.
Mystery Substance: Turns red litmus paper blue and feels slippery on your hands.
Water
Orange Juice
Lemon Juice
Bleach
Acids form (a) when mixed with water, and they taste (b) .
Bases form (c) when mixed with water, and they taste (d) .
Arrhenius acids (a) while Bronsted Lowry acids (b) .
Arrhenius bases (c) while Bronsted Lowry bases (d)
Which of these pH values represent an acid?
4
8
10
12
Phenolphthalein is an indicator used to identify the concentration of unknown solutions. If the pH is 0-6 the substance will be clear, if the pH is 7 it will turn light pink, and if the pH is 8-14 it will turn dark pink.
Using your knowledge of pH and acids/bases, match the following substance to the correct color.
Clear
Stomach Acid
Light Pink
Water
Dark Pink
Bleach
NH3 + H2O → NH4+ + OH-
NH3 is a Bronsted Lowry
Acid
Base
conjugate acid
conjugate base
HNO3 + H2O → H3O+ + NO31-
NO31- is the conjugate base of
H2O
HNO3
H3O+
none of the above
HCO3- + H2O → H3O+ + CO32-
Water is acting as
a Bronsted Lowry base
a Bronsted Lowry acid
a conjugate base
a conjugate acid
HBr is the conjugate acid of
Br1-
Br2
H2Br
none of the above
What is the conjugate base of H2SO4?
SO42-
H2SO3
HSO31-
HSO41-
What is the correct acid-base pair for the following reaction?
CN + H2O ---> HCN + OH
CN & H2O
H2O & HCN
HCN & OH
H2O & OH
