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Chemistry

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Minerva Orn

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Cards in this guide (8)
What kind of solid tends to have the lowest melting points

Solids made up of molecules

What form of the ideal gas law would you use to calculate the volume of a gas

V=nRT/P

Which molecular solid would have the lowest boiling point

One with induced dipole attractions

How is the combined gas law modified to form the ideal gas law

Each side of the equation is divided by the number of moles

Why can liquid boil at a low pressure

Reducing the air pressure allows the molecules to escape

Why does lowered air pressure allow water to boil at room temperature

Less force pushes down on the liquid, making it easier for gas to escape

What does the ideal gas law describe

Charles' Law and other observations of gases are incorporated into the Ideal Gas Law. The Ideal Gas Law states that in an ideal gas the relationship between pressure, volume, temperature, and mass as PV = nRT, where P is pressure, V is volume, n is the number of moles (a measure of mass), R is the gas constant, and T is temperature. While this law specifically applies to ideal gases, most gases approximate the Ideal Gas Law under most conditions. Of particular note is the inclusion of density (mass and volume) and temperature, indicating a relationship between these three properties.


The relationship between the pressure, volume, temperature, and amount of a gas ~APEX

A mixture of He Ar and Xe has a total pressure of 2.60atm The partial pressure of He is 0.350atm and the partial pressure of Ar is 0.350atm What is the partial pressure of Xe

Total = 2.60 atm. 2.60-.350atm(He)-.350atm(Ar) = 1.8 atm Xe

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