Boiiling Point Elevation

How many grams of fructose (C6H12O6) must be dissolved in 937 g of acetic acid to raise the boiling point by 9.1 °C? The boiling point constant for acetic acid is 3.08 °C/m

• 4.67894 mol

• 2.7684 mol

• 3.56470 mol

• 1.00678 mol

A solution is made up of

• Solvent

• Solute

• Both solvent and solute

Colligative properties of solutions are those properties that depend on

• the amount of solute only

• the identity of solute only

• both the identity and the amount of solute

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

The freezing point of a solution is ___________ that of a pure solvent

• more than

• less than

• equal to

The boiling point of a solution is ___________ that of a pure solvent

• more than

• less than

• equal to

What is the molality of a solution containing 2.35g of NaCl in 0.55Kg of water?

• 0.0731

• 4.27

• 0.427

• 7.31

Describe a solute.

• part of solution present in largest amount
• gets dissolved
• water
• surrounds and breaks apart

Styrene glycol (C₈H₁₀O₂) is a plasticizer. How many grams of stryrene glycol must be dissolved in 98.7 g of benzene to raise the boiling point by 8.57 degrees C? K_b for benzene is 2.67 degrees C / m.^

• .098 g

• 138 g

• 3.21 g

• 43.8 g

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