Solubility and Solution Characteristics

Mr. Adams from Midwood High School presents a video on solubility curves, focusing on Table G. He explains the importance of understanding the type of compound (ionic or covalent) and the amount of solvent used. The video covers how gases behave differently in solubility compared to liquids and solids, emphasizing the effects of temperature and pressure. Definitions of saturated, unsaturated, and supersaturated solutions are provided, along with examples of solubility problems. The video concludes with a summary of key points and tips for success.

What must be considered when dealing with solubility curves?

• The type of compound and amount of solvent

• The time of day

• The color of the compound

• The shape of the container

How does the solubility of gases change with temperature?

• Increases with temperature

• Depends on the type of gas

• Remains constant

• Decreases with temperature

What is a characteristic of a saturated solution?

• It is always clear

• It is in equilibrium

• It can dissolve more solute

• It has no solute

What happens when you add a crystal to a supersaturated solution?

• The solution becomes unsaturated

• The crystal dissolves

• Nothing happens

• Rapid crystallization occurs

At what temperature do sodium chloride and potassium chloride have the same solubility?

• 60-61 degrees C

• 25-26 degrees C

• 37-38 degrees C

• 50-51 degrees C

What is the first step in solving a solubility problem involving cooling a solution?

• Add more solute

• Find the solubility at the initial temperature

• Change the solvent

• Measure the pressure

How many grams of ammonia can be dissolved at 10 degrees C compared to 90 degrees C?

• 60 grams more

• 30 grams more

• 70 grams more

• 10 grams more

What is the rate of increase in solubility for sodium nitrate between 40 and 50 degrees C?

• 1 gram per degree C

• 2 grams per degree C

• 0.5 grams per degree C

• 5 grams per degree C

What is the effect of increasing temperature on the solubility of gases?

• Depends on the solvent

• No effect

• Increases solubility

• Decreases solubility

What is the formula for potassium nitrate?

• NH3

• KCl

• NaCl

• KNO3