Dilutions Worksheet
Explore the concept of dilutions, concentration, and how to calculate dilution factors with this Grade 7 Science worksheet.
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Dilutions Worksheet
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Read each question carefully and answer to the best of your ability. Show your work for calculation questions.
1. A is a process of reducing the concentration of a solute in a solution, usually by mixing with more solvent.
2. The substance that is dissolved in a solvent to form a solution is called the .
3. Water is often referred to as the universal because it can dissolve many substances.
4. When you add more solvent to a solution, the concentration of the solute .
1. Which of the following best describes a concentrated solution?
A solution with a small amount of solute.
A solution with a large amount of solvent.
A solution with a large amount of solute.
A solution that cannot dissolve any more solute.
2. If you have 100 mL of a juice concentrate and you add 400 mL of water, what is the total volume of the diluted juice?
100 mL
400 mL
500 mL
300 mL
1. Diluting a solution increases the amount of solute present.
True
False
2. A dilution factor of 1:5 means that for every 1 part of concentrate, there are 5 parts of solvent.
True
False
1. Imagine you have a very dark colored drink. How would you dilute it to make it lighter?
2. Explain why diluting a strong acid or base is important for safety.
1. A scientist has 20 mL of a chemical solution with a concentration of 10 g/L. They want to dilute it to a concentration of 2 g/L. How much total volume will the diluted solution have? Show your work.