Hi everyone! There were many discussion/notes that wanted Brilliant.org to include Chemistry but it failed as it is a very difficult task. However, now we can share notes and problems freely that may make chemistry problems come true. So I hope Brilliant users that are advanced in Chemistry will share some notes and the related problems and I believe someday, Chemistry will also be a major topic!
I will start from a topic of chemistry which is much related to mathematics application.
Solute - The substance that dissolves to form a solution
Solvent - The substance in which a solute dissolves
Solution - A mixture of one or more solutes dissolved in a solvent
**Solutions are homogenous systems, which means the solute is evenly spread out and mixed together in the solvent.
Definition: At a fixed temperature, the maximum mass of a solute that can dissolve in the fixed mass of solvent(usually 100g).
If at , is the maximum mass of can dissolve in of water, the solubility is:
Some other notes:
The solubility of a solute varies in different temperature.
At a fixed pressure, the solubility of a liquid or solid solute increase as the temperature increase but the solubility of a gas solute decrease instead.
At a fixed temperature, the solubility of gas solute increase as the pressure increase.
Solubility of a liquid or solid solute is not much affected by the pressure.
Now there is an example:
Let a , saturated solution evaporate and we can get crystallized . Calculate the solubility of when it is at .
Mass of solute()
Mass of solvent(water)
water dissolves (Note that this means the solvent dissolves the maximum mass of solute already as it is a saturated solution. If now we add 2g of the solute, it will not dissolve into the solvent.)
I only summarise the idea of this topic and the example is very easy. I apologize if I cannot make a clear explanation for you. However, follow me as I will share more tougher chemistry problems for you!