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Abstract 

This project is an investigation into how the salt concentration in water affects its freezing point. Salt, also known as sodium chloride (NaCl), lowers the freezing point of water. This process is called freezing point depression and occurs when there is a solution. When a solute, like salt, is added to a solvent, like water, the freezing point of solvent will vary in different conditions. With that, our project was to find out how the amount of chemicals in water will affect the freezing point of the solution. In our experiments, the solution with 4.1g of salt, which is the solution that has the highest concentration of salt, had the lowest freezing point. The results that we have collected proves that the amount of salt in the water affects the freezing point of the solution as the average of the freezing temperature of the solution decreases as the mass of the salt in the solution increases. Also, we have learned real life applications in our project such as that we can use more salt to help melt the snow down faster in countries such as Canada and America to prevent the skidding of cars on the snowy roads.