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WorksheetsSolutions, Acids and Bases Review
Total questions: 40
Worksheet time: 40mins
150 grams of sugar were dissolved in water at a temperature 40°C. Which of the following would best describe this type of solution?
unsaturated
saturated
supersaturated
Which best describes the result when the concentration of a solution is decreased?
The amount of solute is increased, and the conductivity of the solution is decreased
The amount of solute is increased, and the conductivity of the solution is increased
The amount of the solute is decreased, and the conductivity of the solution is decreased.
The amount of solute is decreased, and the conductivity of the solution is increased.
Which of the following variables has the most effect on the rate of dissolution of a substance in a container of water?
the temperature of the water
the force of the stirring
The surface area of the substance
All of the above
Which is the correct set of base properties?
sweet taste, slippery, changes litmus from blue to red
bitter taste, slippery, change litmus from red to blue
sour taste, corrosive, change litmus from blue to red
sour taste, corrosive, change litmus from red to blue
Which is the correct set of acid properties?
sweet taste, slippery, changes litmus from blue to red
bitter taste, slippery, change litmus from red to blue
sour taste, corrosive, change litmus from blue to red
sour taste, corrosive, change litmus from red to blue
If the hydroxide ion (OH-) concentration is greater than the hydronium ion (H3O+) concentration, then the solution is…
basic
acidic
neutral
salty
If the hydronium ion (H3O+) concentration is greater than the hydroxide ion (OH-) concentration, then the solution is…
basic
acidic
neutral
salty
A student recorded the pH of fresh cow’s milk as it sat at room temperature and curdled over a period of 5 days using an electronic pH meter. What does the change in the pH of milk indicate?
The milk turned more acidic as it curdled
The milk became neutral as it curdled
the milk turned more basic as it curdled
The milk remained the same as it curdled
Four students in a physical science class tested different methods of dissolving laundry soap in water. Each student combines 20 grams of soap with 1000mL of water. The table shows the different methods used by each student.
Which of the following shows the MOST LIKELY order that the students’ laundry soap finished dissolving, from the slowest (last finished) to fastest (first finished)?
Abdullah --> Darien--> Heather ---> Larissa
Heather --> Larissa --> Abdullah --> Darien
Darien --> Abdullah --> Larissa --> Heather
Larissa --> Abdullah --> Heather --> Darien
In the lab situation shown in the table, what color should litmus paper turn when placed in liquid dishwashing detergent?
red
blue
colorless
pink
In the lab situation shown in the table, which substance would be classified as the strongest acid?
liquid dishwashing detergent
pure water
vinegar
bleach
A K2Cr2O7 solution hits saturation when 70 g of salt have dissolved. At which temperature does this occur?
25oC
55oC
45oC
90oC
Which substance increases the LEAST in solubility as the temperature increases?
K2Cr2O7
KNO3
KCl
NaCl
Which substance increases the MOSTT in solubility as the temperature increases?
K2Cr2O7
KNO3
KCl
NaCl
Each student pours 10 grams of sugar into 100 milliliters of water in his or her container. They will stir the water gently for 20 seconds. Which student’s sugar will most likely dissolve the slowest?
Jennie
Al
Adriane
Marcus
Each student pours 10 grams of sugar into 100 milliliters of water in his or her container. They will stir the water gently for 20 seconds. Which student’s sugar will most likely dissolve the slowest?
Jennie
Al
Adriane
Marcus
Each student pours 10 grams of sugar into 100 milliliters of water in his or her container. They will stir the water gently for 20 seconds. Which student’s sugar will most likely dissolve the fastest?
Jennie
Al
Adriane
Marcus
What is the end product of an acid-base neutralization reaction?
acid and base
water and base
water and salt
water and acid
Which of the following substances is the closest to a neutral pH?
ammonia
milk of magnesia
milk
vinegar
Which substance would be the best choice to add to lemon juice to neutralize it?
ammonia
lye
baking soda
milk
Which substance is the strongest base on the pH scale?
ammonia
lye
baking soda
milk
Which substance is the weakest acid on the pH scale?
ammonia
lye
baking soda
milk
Which of the following are properties common to strong bases?
I. Taste Bitter
II. Conducts an electric current
III. Cause phenolphthalein to be colorless
IV. Corrosive to metals
I and III
II and IV
III and IV
I and II
As a carbonated drink, such as soda, is heated, what happens to the solubility of carbon dioxide GAS in the drink?
it is not affected
it increases
it can increase or decrease
it decreases
A chemist dissolved 150 grams of KNO3 at 60C. What type of solution did the chemist create?
unsaturated
saturated
supersaturated
A 200mL sample of water is mixed with 5 grams of salt. Which is the solute?
the salt, because it does the dissolving
the salt, because it is being dissolved
the water, because it does the dissolving
the water, because it is being dissolved
What is the maximum amount of potassium iodide (KI) that can dissolve in 100 grams of water at 30˚C?
25 g
75 g
100 g
170 g
At 40˚C, which substance is least soluble?
KI
KNO3
KClO3
NaCl
The table shows data from an investigation designed to find a liquid solution that is both an base and a strong electrolyte. Based on the data, the solution that is both a base and strong electrolyte is…
Solution 1
Solution 2
Solution 3
Solution 4
The table shows data from an investigation designed to find a liquid solution that is both an acid and a strong electrolyte. Based on the data, the solution that is both an acid and strong electrolyte is…
Solution 1
Solution 2
Solution 3
Solution 4
Which solution would be considered unsaturated?
Solution I; it contains more solute than can dissolve in the solvent
Solution II; it contains more solute than can dissolve in the solvent
Solution III; it contains more solute than can dissolve in the solvent
Solution III; it can continue to dissolve more solute into the solvent
Leonard wants to find out which factors would increase the rate that sugar dissolves in water. First, he dissolves sugar in water at two different temperatures. Next, he keeps the temperature the same but tries two different forms of sugar that have different surface areas (cube and granulated). Finally, he keeps the temperature and the form of sugar the same, but tests the affect of stirring the sugar into the water. Each time he records the rate the sugar dissolves in grams per minute. His results are recorded in the table below. Using Leonard’s data, which statement below is true?
increasing the temperature results in a smaller amount of solute able to dissolve due to less collisions between particles
sugar in a cubed form dissolves faster in water due to the ability of water to hit each side of the cube easier
decreasing the temperature causes particles to stop moving; therefore, water can hit the particles easier and dissolve the sugar faster
sugar in a granulated form dissolves faster as the particles of sugar in this form have more surface area
Borax detergent is dissolved in water. The solution turns red litmus paper blue and feels slippery to the touch. Which pH is possible for the solution?
1.5
5.0
7.0
9.5
Which substance is the strongest acid?
Tums with a pH of 10
Lemon with a pH of 3
Soda with a pH of 4
Blood with a pH of 7.5
What is the solubility of potassium nitrate at 45°C?
72 g
90 g
39 g
205 g
Which substance is MOST soluble at 60°C?
potassium iodide
potassium nitrate
potassium bromide
sodium chloride
What factor MOST affects the rate at which a substance dissolves?
particle type
surface area
size
state of matter
A saturated solution is...
a solution that contains the maximum amount of solute that is capable of being dissolved
a solution that contains the minimum amount of solute that is capable of being dissolved
a solution that contains the more than the maximum amount of solute that is capable of being dissolved
a solution in which the amount of solute and solvent are the same
Which substance will dissolve in water to produce H3O+ (hydronium ion) as the only positive ion in solution?
an acid
a base
water
a salt
Two clear solutions are placed in separate beakers. The first solution has a pH of 4, and the pH of the second solution is unknown. If the two solutions are mixed and the resulting pH is 5, the second solution must have …
a higher concentration of H+ ions
more dissolved salt (NaCl) particles
a lower temperature
a higher concentration of OH- ions
