Decoding Solubility Curves

The video tutorial explains solubility curves, which show the saturation levels of various substances at different temperatures. It covers how to read these graphs and solve problems involving solubility, using examples with potassium nitrate, ammonium chloride, and potassium chlorate. The tutorial demonstrates how to determine saturation amounts and describe solutions as unsaturated or supersaturated.

What does the y-axis on a solubility curve represent?

• Temperature in degrees Celsius

• Amount of solute in grams per 100 grams of water

• Volume of water in milliliters

• Density of the solute

What does the x-axis on a solubility curve represent?

• Density of the solute

• Temperature in degrees Celsius

• Amount of solute in grams per 100 grams of water

• Volume of water in milliliters

What is the saturation amount for a solute?

• The time it takes for a solute to dissolve

• The maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature

• The maximum temperature at which it can dissolve

• The maximum volume of water it can dissolve in

At 50 degrees Celsius, how many grams of potassium nitrate can dissolve in 100 grams of water?

• 80 grams

• 70 grams

• 90 grams

• 50 grams

What type of solution is formed when 60 grams of ammonium chloride are dissolved in 100 grams of water at 90 degrees Celsius?

• Diluted

• Supersaturated

• Unsaturated

• Saturated

If 95 grams of ammonium chloride were dissolved in 100 grams of water at 90 degrees Celsius, what type of solution would it be?

• Saturated

• Unsaturated

• Supersaturated

• Diluted

What type of solution is formed when the amount of dissolved solute is below the saturation point?

• Saturated

• Diluted

• Unsaturated

• Supersaturated

What happens if a solution contains more dissolved solute than the saturation point?

• It automatically dilutes

• It becomes unsaturated

• It remains stable

• It becomes supersaturated

How many grams of potassium chlorate are used in a 25 milliliter saturated solution at 50 degrees Celsius?

• 10 grams

• 5 grams

• 20 grams

• 15 grams

How is the amount of solute in a smaller volume of solution calculated if the saturation amount is known for a larger volume?

• By dividing the known amount by the volume ratio

• By multiplying the known amount by the volume ratio

• By using a proportion based on the volumes

• By estimating visually