Question

Sodium chloride (table salt) is a white crystalline solid.Water is a solvent with a boiling point of 100 °C.Sodium chloride can dissolve in water.A student was asked to investigate what effect adding salt has on the boiling point of water.(a) Write a suitable hypothesis for this investigation.(b) What is meant by the boiling point of a substance? ​

Answer 1

The hypothesis for the investigation is that adding salt to water will increase its boiling point. The boiling point of a substance is the temperature at which it changes from a liquid to a gas.

Step-by-step explanation:

The hypothesis for the investigation can be written as follows:

If salt is added to water, then the boiling point of water will increase.

The boiling point of a substance refers to the temperature at which the substance changes from a liquid to a gas. In the case of water, the boiling point is 100 °C. At this temperature, the water molecules have enough energy to overcome the intermolecular forces and vaporize into steam.