Chemistry Solutions and Properties Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the definition of molality?

  • Number of moles of solute per mass of solution in kilograms
  • Number of moles of solute per volume of solution in liters
  • Number of moles of solute per mass of solvent in kilograms (correct)
  • Number of moles of solute per volume of solvent in liters

Which formula represents the boiling point elevation?

  • $ riangle T_{b} = rac{k_{b} imes 1000 imes w_{2}}{M_{2} imes w_{1}}$ (correct)
  • $ riangle T_{b} = k_{b} imes w_{2}$
  • $ riangle T_{b} = T_{b} + T^{0}_{b}$
  • $ riangle T_{b} = T_{b} - k_{b}$

What characterizes a binary solution?

  • A solution consisting of two components (correct)
  • A solution containing more than two solutes
  • A solution where both components are in solid state
  • A solution made entirely of gases

What does the symbol 'i' in the freezing point depression formula represent?

<p>The van 't Hoff factor (number of particles the solute breaks into) (D)</p> Signup and view all the answers

Which of the following describes a liquid solution?

<p>A homogeneous mixture with solvent in liquid state (B)</p> Signup and view all the answers

Flashcards

Molality

Number of moles of solute per kilogram of solvent.

Molarity

Number of moles of solute per liter of solution.

Boiling Point Elevation

The difference in boiling points of solution and pure solvent.

Freezing Point Depression

Lowering of the freezing point of a solvent by solute.

Signup and view all the flashcards

Types of Solutions

Solutions categorized by the state of the solvent: solid, liquid, or gas.

Signup and view all the flashcards

Study Notes

Solutions

  • Solutions are homogeneous mixtures of two or more components.
  • A binary solution has two components.
  • Components of a binary solution include a solute and a solvent.

Molality and Molarity

  • Molality (m) = (Number of moles of solute) / (Mass of solvent in kilograms)
  • Molarity (M) = (Number of moles of solute) / (Volume of solution in liters)

Boiling Point Elevation

  • The difference in boiling points of a solution (Tb) and a pure solvent (T0b) is called the boiling point elevation (ΔTb).

  • ΔTb = Kb × m × i

    • Where Kb is the ebullioscopic constant
    • m is the molality of the solution and i is the van't Hoff factor.

  • ΔTb = Kb × (1000 × w2) / (M2 × w1)

    • Where w2 is the weight of the solute
    • M2 is the molar mass of the solute
    • w1 is the weight of the solvent
    • Kb is the ebullioscopic constant and i is the van't Hoff factor.

Types of Solutions

  • Solid solutions
  • Liquid solutions
  • Gaseous solutions These are determined by the phase of the solvent.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser