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Temperature of a solution is a condition that controls the solubility of solute in a solvent. Take copper sulfate for example. At 100° Celsius (C) 203.3 grams (g) can be dissolved in 100ml of water; at 0° C, only 31.6g can be dissolved in water.
If you continue to boil the solvent (water) away, the copper sulfate will come out of solution because the amount of water is lessened creating a supersaturated state that forces the solute out of the solution (in other words, the lesser amount of liquid water can't hold that much copper sulfate in solution.) Removing the heat source and allowing the solution to cool has the same effect. As it cools,the copper sulfate will come out of solution.
So, basically, concentration of the solute at a given temperature is the controlling factor. Boiling off the solvent increases the concentration; cooling the solvent decreases the concentration the solvent can hold. Both ways create a state of supersaturation leading to crystallization at all the temperatures in the given range.
What else can I help you with?
Describe how you would make 1.0L of a supersaturated solution of CdI2?
To make a supersaturated solution of CdI2, you would first dissolve an excess amount of CdI2 in hot water until no more can dissolve. Then, allow the solution to cool slowly without disturbing it to prevent crystallization. Once cooled, you will have a supersaturated solution of CdI2 ready for use.
If a seed crystal was added to a supersaturated solution how would you characterize the resulting solution?
If a seed crystal was added to a supersaturated solution, the resulting solution would be a crystallized solution. The formation of solid crystals that precipitate from a solution is called crystallization.
Which term describes the term that contains to much soulte?
The term that describes a solution containing too much solute is "supersaturated." In a supersaturated solution, the concentration of solute exceeds the solute's solubility limit at a given temperature and pressure, leading to potential crystallization if disturbed. This condition can occur when a solution is prepared at a higher temperature and then cooled, allowing more solute to dissolve than would normally be possible at the lower temperature.
What do you call it when too much solvent is in to a solution and it becomes unstable?
When there is an excess of solvent in a solution, causing it to become unstable and unable to maintain the solute in a dissolved state, it is referred to as supersaturation. This can lead to precipitation or crystallization of the solute from the solution.
What would happen if you were to take a saturated solution at a certain temperature and cool it slowly?
the concentration of this solution is going to reduce.< Lets assume that the solution is comprised of water and salt> Then the water at a certain temperature begins to evaporate unlike the salt. at the end of the process, yes we agree that the solution has finally come to a room temperature, but concentration was lost during cooling. I mean that the solution becomes less concentrated
What would happen if you put a sample of the yeast and sugar solution in the refrigerator?
Putting the yeast and sugar solution in the refrigerator will slow down the fermentation process because the cold temperature will decrease the metabolic activity of the yeast. This will result in a longer fermentation time or potentially halt fermentation altogether until the solution is brought back to a warmer temperature.
When you mixed room temperature salt and room temperature water the mixture changes temperature. If you leave this mixture undisturbed for several hours what would happen to the temperature?
The temperature of the mixture would eventually reach equilibrium with the surrounding room temperature as the system stabilizes. This process is known as thermal equilibrium where the heat is evenly distributed throughout the system.
What would increase the solubility of the solution?
Increasing the temperature or stirring the solution would typically increase solubility. Additionally, using a solvent with similar polarity to the solute would also help increase solubility.
What of the equipment would be best to use to test the effect of temperature on solution acidity?
A pH meter would be the best equipment to use to test the effect of temperature on solution acidity. It can provide accurate and real-time measurements of the solution's pH level as the temperature changes. Additionally, a temperature-controlled water bath would be helpful to maintain a consistent and controlled temperature during the experiment.
What would happen to a cell if it were placed into a solution of lower osmolarity?
it would burst
Ken had a beaker containing 54g of potassium chloride dissolved in 100cm3 of water at 90 degrees. he cooled the solution to 40 degrees. what would he see as the solutio cooled to 40 degrees?
As Ken cooled the potassium chloride solution from 90 degrees to 40 degrees, he would likely observe crystallization occurring. This is because the solubility of potassium chloride decreases with temperature, leading to the formation of solid crystals as the solution becomes supersaturated. He may see white crystals forming at the bottom of the beaker or floating in the solution as the solute precipitates out.
What happens if you continue to add solute to saturated solution?
All that would happen is the solute would not absorb into the solution and it would spill off eventually.
