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WorksheetsSolutions in Chemistry
Total questions: 25
Worksheet time: 25mins
Solutions that conduct a current are called ____________ and are made from ___________ compounds.
electrolytes; ionic
nonelectrolytes; ionic
electrolytes; molecular
electrolytes; covalent
The ___ is the thing being dissolved.
solute
solvent
mixture
suspension
Another name for a homogeneous mixture is
an element.
a solution.
a compound.
A dissolved solute that does not form ions is:
nonelectrolyte
weak electrolyte
strong electrolyte
insoluble
Since "like dissolves like", water and oil will not mix because
both of them are polar
both of them are nonpolar
oil is polar and water is nonpolar
oil is nonpolar and water is polar
What is a solvent?
The substance that does the dissolving in a solution.
The substance that is being dissolved in a solution.
The mixing of different substances.
The process in which neutral molecules lose or gain electrons
What is a solute?
The substance that does the dissolving in a solution.
The substance that is dissolved into the solution.
The mixing of different substances.
The process in which neutral molecules lose or gain electrons
Which of the following is an electrolyte?
sodium chloride
sugar
water
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?
stir the powder in the liquid
freeze the mixture
add more powder to the liquid
store the mixture in a dark place
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
83 grams
75 grams
40 grams
12 grams
Which solute is the most soluble at 10 ⁰C?
KI
KClO3
NH4Cl
NH3
When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
supersaturated
saturated
unsaturated
How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?
0.625 g NaCl
625 g NaCl
36.5 g NaCl
0.04 mol NaCl
Which of the following would be classified as an electrolyte in aqueous solution?
Na2CO3
H2SO4
HF
all of these
Which of the following actions will NOT
increase the rate of dissolution
(dissolving)?
Stirring the solution
Decreasing the temperature
Increasing the surface area of the
solute
Increasing the temperature
What is it about the water molecule that makes it a great solvent?
water demonstrates polarity; a partial charge on each side of the molecule
due to its molecular formula
it has a liner molecular shape
due to it's non-polar molecular structure
What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?
0.018 M
0.0011 M
1.052 M
0.062 M
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?
27.8 mL
27.78 mL
2.8 mL
278 mL
What are the two main types of solutions based on solubility?
Diluted solutions and concentrated solutions
Solid solutions and liquid solutions
Homogeneous solutions and heterogeneous solutions
Saturated solutions and unsaturated solutions
Explain how temperature affects the solubility of a solute in a solvent.
Temperature affects solubility by providing more energy to break bonds between solute particles and solvent molecules.
Temperature causes the solute to evaporate
Temperature has no effect on solubility
Increasing temperature decreases solubility
Differentiate between a saturated and an unsaturated solution.
In a saturated solution, the solvent has dissolved the minimum amount of solute at a given temperature, while in an unsaturated solution, the solvent has dissolved the maximum amount of solute at a given temperature.
In a saturated solution, the solvent has not dissolved any solute at a given temperature, while in an unsaturated solution, the solvent has dissolved the maximum amount of solute at a given temperature.
In a saturated solution, the solvent has dissolved the maximum amount of solute at a given temperature, while in an unsaturated solution, the solvent has dissolved the minimum amount of solute at a given temperature.
In a saturated solution, the solvent has dissolved the maximum amount of solute at a given temperature, while in an unsaturated solution, the solvent has not dissolved the maximum amount of solute at a given temperature.
What is the process called when a solute dissolves in a solvent to form a solution?
A) Dissolution
B) Precipitation
C) Evaporation
D) Condensation
Which of the following factors does NOT affect the solubility of a substance?
A) Temperature
B) Pressure
C) Nature of solute and solvent
D) Color of the solute
In a solution, the component present in the largest amount is called the:
A) Solute
B) Solvent
C) Emulsifier
D) Colloid
What happens to the solubility of most solid solutes in water as the temperature increases?
A) It increases
B) It decreases
C) It remains the same
D) It first increases then decreases
