Colligative Properties

When KCl (potassium chloride) is dissolved in water, how many particles are in solution?

• 1

• 2

• 3

• 4

• 6

When CaBr₂ is dissolved in water, how many particles will be in solution?

• 1

• 2

• 3

• 4

• 5

When 11.0 g of CaCl₂ dissolves in 45.0 g of water, what is the boiling point of the solution? (K_b = 0.512 ^oC/m)

• 3.4

• 103.4

• 101.1

• 1.1

• 101.4

Find the boiling point of a solution containing 15.0 g sucrose (molar mass = 342.3g/mol), in 100g of water. (Kb = 0.512 ^oC/m)

• 100.2

• 99.8

• 0.2

• -0.2

Which salt below has the largest effect on freezing point?

• C₂H₄O₂

• H₂S

• LiBr

• CaF₂

Tags

NGSS.HS-PS1-5

When 26.0 g of NaCl, are dissolved in 0.5 kg of water, what is the freezing point of this solution? (K_f = 1.86 ^oC/m)

• -3.3

• 103.3

• -1.7

• -0.8

Colligative properties depend on the _____ of solute particles in solution.

• type
• number
• pH
• nature

molality is

• the moles of solute in 1g of solvent

• the moles of solute in 1g of solution

• the moles of solute in 1kg of solvent

• the moles of solute in 1kg of solution

Colligative properties of solutions are those properties that depend on ___

• the number of solute only

• the nature of solute only

• both the number and nature of solute

The boiling point of a solution is ______ the boiling point of the pure solvent.

• higher than
• the same as
• lower than
• higher or lower than

Tags

NGSS.HS-PS3-4