Suppose u place a beaker containing a solution in the refrigerator. An hour later, white solid found at thr bottom of beaker, wat hapoened? Why?
I answered this earlier(yesterday).
When you place a beaker containing a solution in the refrigerator and observe the formation of a white solid at the bottom after an hour, it indicates a process called precipitation.
To understand what happened, we need to know a little about the properties of solutions and how temperature can affect their solubility. In a solution, there are two main components: the solute (the substance being dissolved) and the solvent (the substance in which the solute dissolves).
When a solution is cooled, the temperature decrease can lower the solubility of certain solutes, causing them to come out of the solution in a solid form. This process is known as precipitation. Since the solid is heavier than the surrounding solution, it sinks to the bottom of the beaker.
The white solid you observed is most likely the solute that was initially dissolved in the solution but became insoluble as the temperature dropped in the refrigerator. The decreased solubility caused the solute particles to combine and form a solid precipitate.
It's important to note that the specific type of solid formed and the degree of solubility change depend on the composition of the solution and the solute involved. Different substances have different solubilities at different temperatures.
To test this further and validate our explanation, you could try heating the beaker and observe whether the white solid dissolves back into the solution. If it does, then the temperature was likely the main factor causing the precipitation. However, if the solid does not dissolve, there may be other chemical reactions or factors at play that caused the formation of the solid.
In summary, the white solid formed at the bottom of the beaker after cooling in the refrigerator is the result of a temperature-induced precipitation process, where the solute becomes insoluble due to decreased solubility at lower temperatures.