Solutions Test

In the image, the seawater is an example of a(n) ---

• nonelectrolyte

• weak acid

• electrolyte

• weak base

A 0.2 g crystal of gypsum dissolves very slowly in 100 mL of water while the water is stirred. Which of these would cause the gypsum to dissolve faster?

• stopping the stirring

• decreasing the water temperature

• crushing the crystal

• lowering the air pressure

When you increase temperature you generally increase...

• solution

• solvent

• solubility

• temperature doesn’t matter

If you made red kool-aid by dissolving dry red powder into water, the red kool-aid you make is a(n) ___________.

• aqueous solution

• solute

• concentration

• ion

Water acts as a _______.

• solution

• solute

• solvent

• compound

Which of the following mixtures has the largest particle size?

• Colloid mixture

• Suspension mixture

• Solution mixture

• Homogenous mixture

What type of bond forms electrolytes?

• Nonpolar Covalent Bonds

• Hydrogren Bonds

• Ionic Bonds

• Combined Bonds

What type of mixture is salt water an example?

• colloid

• solution

• suspension

• heterogenous mixture

Which of the following does not affect the rate at which a solid solute dissovles?

• the pressure of the solvent

• if the solid is crushed or not

• if the solution is stirred

• the temperature of the solvent

A 0.041 L barium hydroxide solution of molarity 3.41 M is diluted with water to form 2.79 L of the solution. Calculate the new molarity of the solution.

• 50.1 M

• 0.020 M

• 0.232 M

• 0.0501 M