Chapter 12 Test

Substance dissolved in a solution

• concentration
• solute
• solvent
• solution

Effervescence is the

• Dissolution of gas in liquid
• Escape of gas from a gas-liquid solution
• Escape of liquid from a liquid-liquid solution
• Escape of solid from a solid-liquid solution

How many moles of HCl are present in 0.70L of a 0.33M HCl solution?

• 0.23 mol
• 0.28 mol
• 0.38 mol
• 0.47 mol

Which mixture contains particles that are in a dispersed phase and do not settle out?

• Colloid
• Homogeneous mixture
• Solution
• suspension

Which mixture contains visible particles that settle out unless the mixture is stirred?

• Colloid
• Homogeneous mixture
• Solution
• suspension

Colloids

• Can be separated by filtering
• Settle out when allowed to stand.
• Scatter light.
• Contain particles larger than 1000 nm.

Which of the following does not increase the rate of dissolving a solid in water?

• Raising the temperature of the water
• Stirring the solution
• Using larger pieces of solid
• Crushing the solid

Capable of being dissolved

• Soluble
• concentration
• colloid
• molarity

If the amount of solute present in a solution at a given temperature is less than the maximum amount that can dissolve at that temperature, the solution is said to be

• Saturated
• Unsaturated
• Supersaturated
• concentrated

The thing that does the dissolving

• Solute
• Solvent
• Colloid
• Solution