Final answer:
The relationship between the temperature of the solvent and the solubility of KCl and KClO3 can be determined using solubility graphs. The solubility of a compound generally increases with increasing temperature, but the extent of increase varies. Three factors that affect how fast substances dissolve are surface area, temperature, and agitation.
Step-by-step explanation:
The relationship between the temperature of the solvent and the solubility of KCl and KClO3 can be determined using solubility graphs. The solubility of a compound generally increases with increasing temperature, but the extent of increase varies. Some compounds like glucose and sodium acetate show a significant increase in solubility with temperature, while others like sodium chloride show little variation. In the case of KCl and KClO3, you can plot their solubility against temperature to observe the relationship.
The unknowns A and B are not mentioned in the question, so I cannot provide specific information regarding their identity. However, the identity of unknowns in a lab report can be determined by analyzing their physical and chemical properties, conducting tests, and comparing the data with known substances. The specific methods used to determine the identity of A and B would depend on the experimental setup and the properties of the substances.
Three factors that affect how fast substances dissolve are:
Surface area: Increasing the surface area of a solid by grinding or crushing it into smaller particles increases the rate of dissolution because there is more contact between the solid and the solvent.
Temperature: Higher temperatures generally increase the rate of dissolution because the molecules of the solvent move faster and can interact more effectively with the solute particles.
Agitation: Stirring or shaking the mixture increases the rate of dissolution by distributing the solute particles throughout the solvent and reducing the thickness of the boundary layer.