Exploring Solubility Curves and Related Problems

The video tutorial explains solubility curves, focusing on how temperature affects the solubility of different substances. It covers the graph's axes, showing grams of solute per 100 grams of water, and discusses the differences between solid and gas solubility. The tutorial also includes sample problems to demonstrate how to use the graph for calculations, emphasizing the importance of understanding saturation points and using proportions for problem-solving.

What is the unique characteristic of SO2 compared to the other solutes on the graph?

• It is a solid.

• It is a liquid.

• It is a gas.

• It is a metal.

What does the solubility curve represent?

• The amount of solute that dissolves in a solvent to create a saturated solution.

• The amount of solvent that dissolves in a solute.

• The temperature at which a solute evaporates.

• The pressure required to dissolve a solute.

What does the Y-axis on the solubility curve graph represent?

• Grams of solute per 100 grams of water.

• Pressure in atmospheres.

• Temperature in degrees Celsius.

• Volume of solvent.

How do you determine the amount of solute that can dissolve at a specific temperature using the graph?

• By looking at the X-axis only.

• By finding the temperature on the X-axis, running it up to the curve, and reading across the Y-axis.

• By measuring the slope of the curve.

• By finding the solute on the Y-axis and reading across the X-axis.

What does a positive slope in the solubility curve of a solid solute indicate?

• The solute is insoluble.

• As temperature increases, less solute can dissolve.

• As temperature increases, more solute can dissolve.

• The solute is a gas.

Tags

NGSS.MS-PS1-4

What happens to the solubility of a gas as the temperature increases?

• It decreases.

• It remains the same.

• It increases.

• It fluctuates.

Tags

NGSS.MS-PS1-4

Why do gases become less soluble at higher temperatures?

• Because the kinetic energy of the gas decreases.

• Because the gas molecules move faster and escape from the solvent.

• Because the solvent evaporates.

• Because the gas condenses.

Tags

NGSS.MS-PS1-4

At 10°C, how much solute can dissolve in 100 grams of water for N3?

• 80 grams

• 70 grams

• 60 grams

• 90 grams

If 80 grams of N3 dissolves in 100 grams of water at 10°C, how much will dissolve in 50 grams of water?

• 20 grams

• 30 grams

• 50 grams

• 40 grams

What is the purpose of setting up proportions when solving solubility problems?

• To find the temperature.

• To calculate the volume of the solvent.

• To determine the amount of solute that can dissolve in a different amount of solvent.

• To measure the pressure.