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A common Combined Gas Law problem will specify that the pressure and temperature change by some factor (double, cut in half, etc.) without specifying any numbers. How does one go about solving such a problem? This video explains how.

Wet gas means that the gas has been collected over water and, consequently, is saturated with water vapor. Dalton's Law of Partial Pressures is used to subtract out the pressure of the water vapor, allowing us to calculate the pressure of the dry gas. ...

Avogadro's Number (6.022 x 1023) is a very, very large number. This calculation attempts to give you a sense of the immense size of Avogadro's Number.

This is the most common type of Combined Gas Law problem in high school chemistry. A volume of gas is collected at some given pressure and temperature (usually °C) and you are asked to "correct" that volume to what it would be at standard ...

This problem gives a number of particles in the problem rather than a number of moles. However, the problem can be solved as if moles had been given. This is because moles and number of particles are directly related; the number of particles divided by ...

A problem which uses Boyle's Law (P1V1 = P2V2) is explained.

Given the mass of a cylinder of aluminum and its length, calculate the radius of the cylinder.

The Kp is calculated knowing the initial partial pressures of the reactants and the total pressure afyer equilibrium is reached.

A example of how to determine a calorimeter constant is presented.

Thermochemistry calculations often assume no energy is lost to the surroundings, an example of the surroundings being the calorimeter itself. This video shows to how to determine the calorimeter constant, which is the amount of heat energy (measured in ...

Two samples of water at two different temperatures are mixed. This video discusses how to calculate the final temperature of the mixture.

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Controlling the breath clears your mind so there is not a problem, just a situation that is manageable. Distributed by Tubemogul.

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Given the formula of a compound with a polyatomic ion, write the name.At 3;31 you will hear Penny (my butterscotch tabby) meow. She came into my office wanting to be petted, so I did. After I finished the video. She's a good kitty!

This video discusses both directions: (1) when given the formula, write the name and (2) when given the name, write the formula.

It takes 325 kJ to break one mole of Cl2 bonds. What is the wavelength of light needed to provide the energy to break one Cl2 bond?