Change in Boiling Point of Water with Molarity Essay

Change in Boiling Point of Water with Molarity - Essay Example In the beaker A NaCl was not dissolved. Concentration of this solution was expressed as 0 molar aqueous solution (0M). In beaker B 5.8gms of NaCl was dissolved and hence a 1 molar aqueous solution (1M) was obtained. In the beaker C 17.4gms of NaCl was dissolved and hence a 3 molar aqueous solution (3M) was obtained. Lastly in the beaker D 29.0gms of NaCl was dissolved and the molarity of this aqueous solution was 5M. It is very clear that boiling point of the solution increases with molarity of the aqueous solution. It implies that the boiling point of water and the amount of dissolved salt, or molarity of the solution, are in direct proportion. If the increase in temperature were to be denoted by t and the molarity of the aqueous solution by M and if k were to be a constant, then, 4) The exact amounts of salt to get 0M, 1M, 3M, 5M aqueous solutions respectively should be dissolved in the water in the beakers. The formula Molarity = Moles of solute/Liters of Solution should be used for this purpose1. Some of controlled variables are Normal Pressure of 1 atmosphere, Identical beakers in all regards like made of same dimensions and material, The burner level, Pure distilled water, etc. The independent variable was the molarity and the dependent variable was the temperature.