Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

4. BONUS: Lab Techniques and Procedures

Filtration and Evaporation

General Chemistry

4. BONUS: Lab Techniques and Procedures

Filtration and Evaporation

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Multiple Choice

In the process of filtration, how do substances move across a filtration membrane?

Substances move through the membrane by chemical reaction.

Substances move through the membrane by gravitational pull.

Substances move through the membrane based on size exclusion.

Substances move through the membrane by magnetic attraction.

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Verified step by step guidance

Understand the concept of filtration: Filtration is a physical separation process used to separate solids from liquids or gases using a filter medium that allows only certain substances to pass through.

Identify the mechanism of filtration: Filtration works primarily through size exclusion, where particles are separated based on their size relative to the pores of the filtration membrane.

Consider the properties of the filtration membrane: The membrane has pores of specific sizes that allow smaller particles to pass through while larger particles are retained.

Evaluate the options given: Chemical reaction, gravitational pull, and magnetic attraction are not mechanisms by which substances move through a filtration membrane in typical filtration processes.

Conclude with the correct mechanism: Substances move through the membrane based on size exclusion, which is the principle that governs the filtration process.