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1. What is the molarity of a solution containing 45.0 grams Naso, in 500 ml of solution? Mnr. 163 Experiment: Name: Date: 5/1
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Answer #1

These are experimental observations that you will have to make. A general answer to these problems is given below:

Question 1

A supersaturated solution is the solution that has more than the maximum concentration of solute present in it. If you add a small crystal of solute to this solution, immediate recrystallization will take place. This holds true for a given temperature. The solubility will change with the temperature. When you heat a supersaturated Solution, it can further dissolve more solute. If you cool a supersaturated Solution, crystallization of the solute will be observed.

Question 2

KMNO4 is inorganic material that is polar. Polar compounds do not dissolve in non polar solvents.

KMNO4 will dissolve in water and methanol. It will not dissolve in hexane

Question 3

The thumb rule is 'Like dissolves like'. Polar solvents will be miscible with each other. Organic solvents generally are miscible with each other. Polar solvents will be miscible with water.

Ethanol and acetone are polar small organic molecules. Both of these are miscible with water.

Hexane on the other hand is a non polar solvent. It will not be miscible with water. It will form a separate layer that will be on top of the water layer.

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