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This chemistry video tutorial explains how to calculate the molarity of a solution given the mass of the solute and the volume of the solution. It also discusses how to calculate the molarity given the mass percent and density of the solution. The last problem illustrates to how calculate the molarity given the density and the molality of the solution. There's plenty of practice problems to work on in this tutorial.

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This Physics Final Exam Review contains multiple choice problems on pressure in fluids, simple harmonic motion, the simple pendulum, standing waves, sound waves, & the doppler effect.

Here are some other videos of interest:

Buoyant Force Formula Derivation:
https://www.youtube.com/watch?v=Qgl_l...

Apparent Mass Formula Derivation:
https://www.youtube.com/watch?v=yQIl0...

Bernoulli's Equation Practice Problems:
https://www.youtube.com/watch?v=xTAfy...

Mechanical Waves Practice Problems:
https://www.youtube.com/watch?v=qm1hD...

Standing Waves In Organ Pipes:
https://www.youtube.com/watch?v=7eyYN...

Sound Intensity & Decibels:
https://www.youtube.com/watch?v=twppI...

Doppler Effect - More Practice Problems:
https://www.youtube.com/watch?v=JYt73...

Here is a list of topics:
1. Density of Fluids
2. Calculating The Force Exerted By The Atmosphere
3. Absolute Pressure and Gauge Pressure
4. The Hydraulic Lift
5. Buoyant Force & Archimedes Principle
6. Calculating The Density of an Object Using Apparent Mass
7. How To Determine The Fraction of an Object Submerged in Water
8. Bernoulli's Equation and The Equation of Continuity
9. Torricelli's Theorem
10. The Force Exerted By Wind on a Roof
11. Finding The Spring Constant using Hooke's Law and The Potential Energy Stored in a Spring
12. Conservation of Energy of a Mass Spring System - Mechanical Energy, Potential Energy and Kinetic Energy.
13. Finding The Amplitude, Frequency, Period, and Maximum Acceleration of a Mass-Spring System Given The Position Equation Describing Its Motion.
14. The Frequency of a Simple Pendulum
15. Calculating The Gravitational Acceleration of a Planet Using a Simple Pendulum
16. Calculating The Speed of a Standing Wave on a String Under Tension as well as the Wavelength, Fundamental Frequency and the Harmonics of such a Wave in Addition to Determining The Number of Loops, Nodes, and Antinodes Present.
17. Another Problem on Fundamental Frequency & Harmonics
18. Speed of Sound vs Temperature
19. Sound Level and Intensity Calculations
20. Calculating The Intensity of Sound at a Distance
21. How To Calculate The Fundamental Frequency and The Overtones of an Organ Pipe That is Open at Both Ends and Closed at One End.
22. Identifying The Type of Organ Pipe Using Harmonics
23. Beat Frequency Generated By Two Tuning Forks
24. Determining The Possible Frequencies Generated By a Guitar String Using Beat Frequency
25. Identifying The Exact Frequency of a Guitar String Using The Beat Frequency Generated By Two Tuning Forks
26. The Doppler Effect - a simple example
27. The Doppler Effect - a more complicated example

This chemistry video tutorial explains how to calculate the height of water in a barometer given the density and column height of a mercury barometer. This tutorial explains how to derive the formula to calculate the column height of water using other equations in physics and geometry. The weight of the atmosphere must equal the weight of the fluid in the column for equilibrium to be established. Knowing this, you can derive the formula using density and the volume of a cylindrical prism.

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