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# Tools for Chemistry - Solution, Solute, Solvent

It's been a long time since my last post, sorry for that. Today, I want to summarise all the ways to express a concentration of a solute in a solution.

Mass Percentage

$$\text{Mass Percentage }(\%)=\displaystyle \frac{\text{Mass of Solute}}{\text{Mass of Solution}}$$

Volume Percentage

$$\text{Volume Percentage }(\% V/V)=\displaystyle \frac{\text{Volume of Solute}}{\text{Volume of Solution}}$$

Molality

$$\text{Molality }(\text{molkg}^{-1})=\displaystyle \frac{\text{Amount of Solute }(\text{mol})}{\text{Mass of Solvent }(\text{kg})}$$

Amount-of-substance Concentration

$$\text{Amount-of-substance Concentration }(\text{molL}^{-1})=\displaystyle \frac{\text{Amount of Solute }(\text{mol})}{\text{Volume of Solution }(\text{L})}$$

I just summarise the formulas, if you have something you don't understand, just comment below!

I will be posting many problems playing with these tools, stay tuned!

Note by Christopher Boo
3 years, 11 months ago

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