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CHEM 205 General chemistry lab questions (separation of mixtures in a chemistry lab) summer solution fall Concordia University CA$17.86   Add to cart
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CHEM 205 General chemistry lab questions (separation of mixtures in a chemistry lab) summer solution fall Concordia University
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CHEM 205 General chemistry lab questions (separation of mixtures in a chemistry lab) summer solution fall Concordia University

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  • March 2, 2024
  • 6
  • 2023/2024
  • Exam (elaborations)
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CHEM 205 General chemistry lab questions
(separation of mixtures in a chemistry lab)
summer solution fall 2024-2025 Concordia
University

, 1. **Question:** What is the primary goal of separation techniques in chemistry?

**Answer:** The primary goal is to isolate and purify individual components from a mixture.



2. **Question:** Define a mixture.

**Answer:** A mixture is a combination of two or more substances that are not chemically bonded.



3. **Question:** What is a solvent?

**Answer:** A solvent is a substance capable of dissolving other substances to form a solution.



4. **Question:** Differentiate between a solute and a solvent.

**Answer:** A solute is a substance that is dissolved in a solvent to form a solution, whereas a solvent
is the substance in which the solute dissolves.



5. **Question:** Explain the principle behind filtration.

**Answer:** Filtration separates solids from liquids or gases by passing the mixture through a porous
material that retains the solid particles while allowing the liquid or gas to pass through.



6. **Question:** Name a common laboratory apparatus used for filtration.

**Answer:** A Büchner funnel or filter paper and funnel setup are commonly used for filtration.



7. **Question:** What is decantation?

**Answer:** Decantation is a separation technique that involves carefully pouring off a liquid
component from a solid precipitate that has settled at the bottom of a container.



8. **Question:** When is decantation typically used?

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