# One solution contains 55 g #NaCl # per liter. and another contains 55 g #KCl# per liter. Which solution has the higher molarity? How can you tell?

The quantity of material dissolved in one liter of solution is known as molarity.

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## NaCl solution

- Since you're given the masses of each compound, all you have to do is to calculate its formula masses;
- After that, find the no. of moles of each compound using the formula:

## number of mol=mass/formula mass

- Then find the Molarity(M) of each solution by using the formula

## M=mol of solute/liters solution

- Compare the results per your calculation to determine which solution has higher M.

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It is obvious that there will be more sodium chloride solute particles if equal masses of the salts are added to the same volume because sodium chloride has a smaller molar mass.

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The molarity is the same for both solutions because it depends only on the number of moles of solute per liter of solution, regardless of the identity of the solute.

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