So, just recently I decided to change the topic of my blog. I thought just talking about the basics of organic chemistry was kind of dull and boring. I got the idea from a classmate (Lindsay Jmaiff) about talking about chemical equations, formulas, laws and theorems and the famous scientists who came up with them. I believe that this topic will be much more interesting by giving everyone a little insight about some major formulas and equations that are used in everyday chemistry.
To begin, I would like to discuss a fairly simple law which is “Raoult’s Law”. The “Raoult Law” was developed by the french chemist, Francois-Marie Raoult(1830-1901) in 1882. Francois-Marie Raoult started the developement of the Raoult Law by carrying out a set of experiments and he studied the vapor pressure of a number of binary solutions that contained volatile and non-volatile electrolye solutes.
This law states that the vapor pressure of a solution is dependent on the vapor pressure of each of the chemical components and the mole fraction of the components present in the solution. There are a number of different ways of expressing this law, it all depends on the situtaion given. The following is the most common expression for "Raoult's Law":
Psolvent = XsolventPosolvent
Xsolvent represents the mole fraction of the solvent
Posolvent represents the vapor pressure of a pure solvent at a certain temperature
Just one last quick note, "Raoult's Law" only works for ideal solutions. An ideal soluiton is a mixture of substances that has physical properties that are related to the properties of the pure components. In this case, it is important to remember that it works for highly diluted solutions and solutions that have the molecules of a solute and solvent being the same as the interaction between the molecules and the mixture itself.
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