Hi everyone! I’ll be talking about the mini-experiment we did in Science today.
Dissolving salt with different solvents. We had 3 beakers for one hot water and one cold water; another hot water with stirring. Each beaker was filled with 100ml, and filled 1 teaspoon of salt in each. We use a stop watch for us to know the time. In cold water, salt dissolves slowly, leaving some granules behind. In hot water, it dissolves faster, disappearing almost instantly. Stirring hot water speeds up the process, creating a smooth, clear solution.
The fastest method is hot water stirred because hot water with stirring dissolves solutes faster because the heat increases molecular movement, and stirring helps distribute the solute more evenly, speeding up the process. This increased motion and agitation allow solute particles to break apart and mix with the solvent more efficiently. As a result, the solute dissolves much quicker compared to cold water and hot water.
| Solvent | TIme |
| Hot water | 2:39 |
| Cold water | 12.:23 |
| Hot water stirred | 1:15 |