Molarity is a measure by which the number of moles of solute present in one liter of the solution is calculated, hence the concentration of a substance in a solution is determined. It is known to be one of the most widely used units by which the concentration is measured. The volume of the solvent that makes up the solution is also calculated from the molarity.
Molarity is also named as molar concentration, amount concentration, and substance concentration. The unit that is commonly used to express molarity is mol/dm3 (mol/L). The molarity of a solution is 1M (1 molar) if the concentration of the solution is 1 mol/dm3.
The formula of molarity is:
Molarity (M) = Moles of solute (n)/ Volume of solution (V)
Standard solutions of calcium ion used to test for water hardness are
A sample of sodium hydrogen carbonate solid weighing 0.1015 g
Calculate the new molarity when 150. mL of water is added
A solution of phosphoric acid, H3PO4, is found to contain
When 10. L of water is added to 3.0
Calculate the new molarity if each of the following dilutions is made
Calculate the new molarity that results when 250. mL of water
A solution of the sparingly soluble base Ca(OH)2
Explain the difference in meaning between the following two solutions: “
Calculate the indicated quantity for each solution. a. The
