Solutions

What is the concentration of a 50.0 mL solution of 2.25M KBr when diluted to 1.00 L

• .113 M

• .225M

• .250M

• .450M

What is the concentration of a solution with 10.00 g of KF into 2.0L?

• 5.0 M

• .25M

• .13M

• .086M

What type of solution is formed when NaOH is dissolved into water?

• an electrolyte, because NaOH is a strong electrolyte

• a non-electrolyte, because NaOH is not an electrolyte

• a non-electrolyte, because NaOH is a strong electrolyte

• a non-electrolyte, because NaOH is not an electrolyte

A supersaturated solution contains

• The maximum amount of solute

• Less than the maximum amount

• More than the maximum amount

• none of the above

What salt is most soluble at 40.0 C?

• Ce₂(SO₄)₃

• KClO₃

• KCl

• KNO₃

Why is water able to dissolve so many compounds?

• Hydrogen bonding

• surface tension

• low vapor pressure

• polarity

When creating a solution, to speed up the rate at which the solute dissolves, you would

• lower the temperature

• lower the pressure

• use small pieces

• do not stir

A student adds 75.0 g of NaCl to 250.0 mL of water, what is the new freezing point? (K_f= -1.86)

• -1.57

• -3.21

• -7.90

• -9.54

At 90.0 C and 200.0 g of water, how much NaCl will dissolve?

• 20.0

• 40.0

• 60.0

• 80.0

In a kool-aide solution, what is the solvent?

• kool-aide packet

• sugar

• water

• non of the above