Question

a student sets up an experiment to test the factors that affect the solubility of sodium chloride. the student places 5.0g of sodium chloride in four beakers, each containing 100ml of water, and heats them to the following temperatures:
beaker a: 20°c
beaker b: 40°c
beaker c: 50°c
beaker d: 60°c
in which beaker would the sodium chloride dissolve at the fastest rate?

a beaker d

b beaker b

c beaker c

Explanation:

The rate of dissolution of a solute (like sodium chloride) generally increases with temperature because higher temperature provides more kinetic energy to the solvent molecules, allowing them to interact more effectively with the solute particles. Among the given beakers, Beaker D has the highest temperature (60°C), so sodium chloride will dissolve fastest there.

Answer:

A. Beaker D