Solutions

Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain?

• saturated
• unsaturated
• polar
• nonpolar

Which of the following has the MOST surface area?

• A single 5 gram ice cube

• 5 grams of crushed ice

• 5 grams of shaved ice

You begin with a solution of 400 grams of potassium chloride dissolved in 1250 mL of water. If the volume of water is increased by 33%, what is the final molarity of the solution?

• 3.2 M

• 4.3 M

• 5400 M

• 5.4 M

If 400 mL of a 8.0 M solution is diluted to a molarity of 5.3M, about how much solvent volume was added?

• 200 mL

• 600 mL

• 400 mL

• 180 mL

This solution would be considered

• Unsaturated
• Supersaturated
• Saturated
• Undefined

Tags

NGSS.MS-PS1-4

The ___ is the thing being dissolved.

• solute
• solvent
• mixture
• suspension

You and your friend have a contest to see who can make sweet iced tea the fastest. Which of the following would NOT help you win?

• Cooling the water

• Using smaller sugar crystals

• Heating the water

• Stirring quickly

Tags

NGSS.MS-PS3-3

amount of solute that can dissolve in a given amount of solvent at a given temperature

• saturated solution
• solubility
• pure substance
• colloid

Which term describes a solution in which there is less than the maximum amount of solute dissolved for the given temperature?

• Unsaturated

• Saturated

• Concentrated

• Supersaturated

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated