Why did chemists develop the concept of molarity?

Question

Naomi Aronson · Accepted Answer

As away of expressing the number of moles of something in a given volume. Molarity is just moles per liter. So why do we have moles?

The word "number" in the previous sentence refers to the specific number of atoms, ions, or molecules that make up a mole; a mole is not a weight or an amount of anything; rather, it is a count. Since different atoms weigh different amounts, I could weigh out 10 g of one type of atom and 10 g of another, and not have the same amount of atoms in each 10 g. This is why expressing things in moles ensures that we have the same amount of atoms. Molarity is the number of moles per liter. Atoms, ions, and molecules will react together in 1:1, or 1:2, 1:3, etc. configurations. That is, 1 atom of sodium will react with 1 atom of chlorine to make 1 molecule of sodium chloride. Here are some diagrams and a better explanation I have for you. What makes moles significant?

Jeremiah Adams · Answer

undefined Chemists developed the concept of molarity to provide a convenient way to express the concentration of a solution. Molarity allows chemists to easily quantify the amount of solute dissolved in a solvent by measuring the number of moles of solute per liter of solution. This standardized approach simplifies calculations, facilitates comparisons between different solutions, and enables precise control over the concentrations of substances in chemical reactions and experiments.