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

1. Intro to General Chemistry

Chemical Properties

General Chemistry

1. Intro to General Chemistry

Chemical Properties

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Multiple Choice

In an experiment measuring the effect of temperature on the solubility of a salt, which of the following is the dependent variable?

Type of salt used

Temperature

Amount of salt dissolved

Volume of solvent

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Verified step by step guidance

Identify the independent variable: The independent variable is the one that is changed or controlled in a scientific experiment to test the effects on the dependent variable. In this case, the temperature is the independent variable because it is being changed to observe its effect on solubility.

Define the dependent variable: The dependent variable is what you measure in the experiment and what is affected during the experiment. It 'depends' on the independent variable. Here, the dependent variable is the amount of salt dissolved, as it is the outcome being measured in response to changes in temperature.

Consider the other options: The type of salt used and the volume of solvent are constants or controlled variables in this context. They are kept the same to ensure that any changes in the amount of salt dissolved are due to the temperature changes.

Understand the relationship: The experiment is designed to see how temperature affects the solubility of the salt. Therefore, the amount of salt dissolved is the dependent variable because it is the result that is being measured.

Summarize the concept: In experiments, the dependent variable is the variable being tested and measured, and it is 'dependent' on the independent variable, which is manipulated. In this case, the amount of salt dissolved is dependent on the temperature changes.