The concentration of the salt solution, or salinity. It changes as shown in the related link below.
Higher the concentration of the solute, lower is the freezing point.
Salt decreases the freezing point of water and increases the boiling point of water.
raise its freezing point
Adding salt (sodium chloride) the freezing point of water decrease; for an experiment add gradually salt (in known quantities) and measure the freezing point after each addition.
Dissolved solute (NaCl, salt) will raise the boiling point and lower the freezing point of water. This is known as a colligative property.
An "hypothesis" doesn't have independent and dependent variables until you design an experiment to test it. If you want to test the effect that salt in solution has on the freezing point of the solution, then the independent variable is the presence, absence, or concentration of the salt. The dependent variable is the freezing temperature you measure in each condition.
The dependent variable would be the freezing point of the solution.
The depression of the freezing point is dependent on the nature of solvent and concentration of solute.
The independent variable! =] the dependent variable is what is changed by the independent variable... Eg... And a bad one at that lol... But the affect of salt on the boiling point of water... Salt is independent variable... Dependent is the boiling point =]
Vinegar will not affect the freezing point of vinegar.
Higher the concentration of the solute, lower is the freezing point.
Atmospheric pressure and the presence and concentrations of solutes affect the freezing point.
The freezing point of water solutions containing sodium chloride is lower.
Salt decreases the freezing point of water and increases the boiling point of water.
For the calculation see this link.
Increasing the concentration of sodium chloride in water the freezing point is lower.
raise its freezing point