Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 36m
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

8. Thermochemistry

Heat Capacity

General Chemistry

8. Thermochemistry

Heat Capacity

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Multiple Choice

When calculating the heat of solution in a calorimeter, which of the following is assumed to be negligible?

The mass of the water

The specific heat of the salt

The temperature change of the solution

The specific heat of water

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Verified step by step guidance

Understand the concept of heat of solution: When a solute dissolves in a solvent, it can either absorb or release heat. This is measured using a calorimeter.

Identify the components involved in the calorimeter: Typically, this includes the solute (salt), the solvent (water), and the calorimeter itself.

Recognize the assumptions made in calorimetry: In many calorimetry problems, certain factors are considered negligible to simplify calculations. These can include the heat capacity of the calorimeter itself or the specific heat of the solute.

Focus on the specific heat of the salt: In this problem, the specific heat of the salt is assumed to be negligible. This means that the heat absorbed or released by the salt itself is not considered in the calculation.

Consider the implications of this assumption: By assuming the specific heat of the salt is negligible, the calculation focuses on the heat exchange between the water and the calorimeter, simplifying the process and allowing for the determination of the heat of solution based primarily on the water's properties.