Final answer:
The molarity of a solution is the number of moles of solute per liter of solution. To calculate molarity, you need to know the number of moles of solute and the volume of the solution in liters.
Step-by-step explanation:
The molarity of a solution is the number of moles of solute per liter of solution. In order to calculate the molarity, you need to know the number of moles of solute and the volume of the solution in liters. The formula to calculate molarity is:
Molarity (M) = moles of solute / volume of solution (L)
For example, if you need to prepare a 200 mL solution with a molarity of 0.5 M, you would first convert the volume to liters (0.2 L) and then use the formula to find the number of moles of solute:
Moles of solute = Molarity x Volume of solution
Once you have the number of moles, you can convert it to grams if necessary using the molar mass of the solute.