Lesson 5.3.2.5
5.3.2.5 Concentration of solutions Quiz: AQA Combined Science, Unit 10
20 questions
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Lesson 5.3.2.5, Concentration of solutions: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 10: Quantitative chemistry, written with Revision Ninja.
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The 20 questions
-
How is the concentration of a solution typically measured?
- Volume per mass
- Mass per mass
- Moles per mass
- Mass per volume
-
Which unit is commonly used for the concentration of a solution expressed as mass per volume?
- kg/m2
- g/dm3
- g/cm2
- mol/s
-
5 g of sodium chloride is dissolved to make 250 cm3 of solution. What is the concentration?
- 50 g/dm3
- 20 g/dm3
- 1.25 g/dm3
- 0.05 g/dm3
-
What mass of solute is in 0.5 dm3 of a solution with concentration 4 g/dm3?
- 0.125 g
- 4.5 g
- 2 g
- 8 g
-
What volume of solution contains 3 g of solute at a concentration of 15 g/dm3?
- 2000 cm3
- 5 cm3
- 200 cm3
- 45 cm3
-
What mass of solute is in 500 cm3 of a solution with concentration 10 g/dm3?
- 0.5 g
- 50 g
- 20 g
- 5 g
-
12.5 g of solute is dissolved to make 250 cm3 of solution. What is the concentration?
- 5 g/dm3
- 0.05 g/dm3
- 12.5 g/dm3
- 50 g/dm3
-
Which solution has the higher concentration?
- 4 g in 200 cm3
- 10 g in 400 cm3
- 8 g in 200 cm3
- 5 g in 250 cm3
-
10 g of solute is dissolved to make 2 dm3 of solution. What is the concentration?
- 10 g/dm3
- 0.2 g/dm3
- 5 g/dm3
- 20 g/dm3
-
What happens to the concentration of a solution if you double the mass of solute in a fixed volume?
- It halves
- It doubles
- It stays the same
- It quadruples
-
What happens to the concentration if you double the volume of solution with a fixed mass of solute?
- It quadruples
- It stays the same
- It doubles
- It halves
-
0.5 mol of NaOH (Mr 40) is dissolved to make 0.25 dm3 of solution. What is the concentration in g/dm3?
- 20 g/dm3
- 40 g/dm3
- 160 g/dm3
- 80 g/dm3
-
How is concentration related to mass of solute for a fixed volume?
- Unrelated
- Exponential
- Inversely proportional
- Directly proportional
-
How do concentrations compare for 6 g in 200 cm3 versus 6 g in 600 cm3?
- Twice more
- Equal
- Three times more
- Three times less
-
What is the mass of solute in 80 cm3 of a solution with concentration 25 g/dm3?
- 20 g
- 0.32 g
- 2 g
- 3.2 g
-
What volume is needed to contain 4.5 g of solute at a concentration of 15 g/dm3?
- 300 cm3
- 3000 cm3
- 30 cm3
- 67.5 cm3
-
Which expression for the mass of solute is correct?
- mass = concentration x volume
- mass = concentration / volume
- mass = volume / concentration
- mass = concentration + volume
-
Rearrange concentration = mass / volume to find volume.
- volume = mass x concentration
- volume = concentration / mass
- volume = mass - concentration
- volume = mass / concentration
-
Which is more concentrated: 9 g in 300 cm3 or 10 g in 500 cm3?
- Cannot tell
- 9 g in 300 cm3
- 10 g in 500 cm3
- They are equal
-
100 cm3 of a 40 g/dm3 solution is evaporated to 50 cm3 with no solute lost. What is the new concentration?
- 40 g/dm3
- 160 g/dm3
- 20 g/dm3
- 80 g/dm3
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