WorksheetsRevision Work
Total questions: 42
Worksheet time: 1hrs 18mins
True or false:
Dissolved particles will pass through a piece of filter paper.
True
False
Which of the following is NOT a solution?
the air you breathe
carbonated soda
nail polish mixed with acetone
milk
You and your friend have a contest to see who can make sweet iced tea the fastest. Which of the following would NOT help you win?
Cooling the water
Using smaller sugar crystals
Heating the water
Stirring quickly
You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:
saturated
unsaturated
concentrated
warm
How do you know when you have a saturated solution?
You don't see anymore material in the solution. It has dissolved.
The material dissolves and no more will dissolve because you see it collect at the bottom.
The solution is bubbling and cloudy.
The solution is clear and there is nothing at the bottom.
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
In order to dilute a solution, you need to
add more of the solid
add more water
find the mass
find the volume
Which solution is more diluted?
Solution 1:
1000 mL of water
60g of salt
Solution 2:
500 mL of water
60 g of salt
Not enough information to tell
Solution 1
Solution 2
They are equally diluted
Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water
30
25
20
15
___________ refers to the amount of solute dissolved in a given amount per volume of solution
Concentration
Dilution
Precipitation
None of the above
Which of the following ONLY has the effect on the solubility of 'gas'?
Pressure
Temperature
Molarity
Volume
What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?
0.014 %
1.4 %
0.13%
What mass of solute is needed to make 100.0 g of a 3.4% solution?
3.4 g
34 g
2941 g
0.34 g
What happens when salty water is boiled?
The salt becomes a new compound and water evaporates as it has a low boiling point
The water evaporates and the salt remains in the beaker as it has a high melting point
The water becomes a new compound and evaporates while salt remains in the beaker
The water will disappear and the salt remains in the beaker as it is a solid
What happens when sugar is mixed with water?
The sugar and water become a new compound that can be separated by crystallization
The sugar dissolves as it is a solid and can be separated by crystallization
The sugar and water become a mixture that can be separated by crystallization
The sugar and water become a mixture that can be separated by filtration
Which of the following is a correct statement about distillation
The components of the mixture have different densities
The components of the mixture have different melting points
The components of the mixture have different boiling points
The components of the mixture form a heterogeneous mixture
What is the correct order for obtaining salt from a mixture of sand and salt?
Dissolving in water - filtration – evaporation
Evaporation - filtration - dissolving in water
Filtration - dissolving in water - evaporation
Dissolving in water – evaporation - filtration
The process used to separate heterogeneous mixtures of solids and liquids is called
filtration
crystallization
distillation
chromatography
The formation of pure solid particles of a substance from a solution is called
filtration
crystallization
distillation
chromatography
Name the separation technique shown in the diagram
Filtration
Chromatography
Centrifugation
Distillation
Ink can be separated by a method of -----------------------------------------------
distillation
filtration
chromatography
sedimentation
