CHY 103 Lecture Notes - Lecture 4: Molality, Sodium Hydroxide, Molar Concentration
Document Summary
Most of the time we think of solutions in terms of the liquid state. However, it is possible to have solutions in the others states as well. By now we are all familiar with the idea of molarity, expressing the concentration of a solution in terms of moles of solute per volume of solution. However, there are other ways of expressing solution concentrations which provide different kinds of information about the solution. The mass percentage is simply the ratio of the solution component mass (solute) to the total mass of the solution, i. e. 1. For example, a solution that is 28 percent naoh by mass contains 28 g of naoh for each 100 g of solution. It is often easier to express very dilute (low solute concentration) solutions in terms of. This is the same as the mass percent except multiplied by a factor of 106 instead of 100, i. e. 1 ppm is equivalent to:
