Exploring Solubility Product Constants in Chemistry

What happens when barium sulfate is added to distilled water at 25 degrees Celsius?

• It completely dissolves.

• It forms a gas.

• It reacts violently.

• A small amount dissolves, forming barium and sulfate ions.

Tags

NGSS.HS-PS1-2

What is the state of the system when the rate of dissolution equals the rate of precipitation?

• Saturated

• Unsaturated

• Equilibrium

• Supersaturated

In the equilibrium constant expression for solubility equilibria, which components are excluded?

• Ions in solution

• Liquids

• Pure solids

• Gases

What does a Ksp value much less than 1 indicate about a salt?

• It is highly soluble.

• It is not very soluble.

• It is a gas.

• It is a liquid.

Which of the following salts has the highest solubility based on their Ksp values?

• Silver iodide

• Silver bromide

• Silver chloride

• Lead(II) chloride

How many ions does lead(II) chloride produce in solution?

• Two

• One

• Three

• Four

What is the first step in calculating the Ksp for calcium fluoride?

• Calculate the molar mass

• Measure the temperature

• Write the dissolution equation

• Determine the pH

What is the equilibrium concentration of calcium ions if the concentration of fluoride ions is 4.2 x 10^-4 M?

• 2.1 x 10^-4 M

• 4.2 x 10^-4 M

• 8.4 x 10^-4 M

• 1.05 x 10^-4 M

Tags

NGSS.HS-PS1-6

Why might different sources report different Ksp values for the same salt at the same temperature?

• Different temperatures

• Different units

• Measurement difficulties

• Different salts

What is the molar solubility of calcium fluoride if the concentration of calcium ions is 2.1 x 10^-4 M?

• 1.05 x 10^-4 M

• 8.4 x 10^-4 M

• 2.1 x 10^-4 M

• 4.2 x 10^-4 M