MHS Chemistry
Solutions and Colligative Properties Worksheet

Answer the following clearly and completely on a separate piece of paper.  Use the CRC handbook or a chemistry textbook for values of k.

  1. What is the difference between freezing point, melting point, and boiling point?
  2. What is the normal boiling point of water?
  3. What is the normal freezing point of water?
  4. What is the normal melting point of ice?
  5. What is the shape of the water molecule?
  6. What is the equation for the relationship between impurities in a solvent and the boiling or freezing point of that solvent?  Tell the meaning of each symbol in the equation.
  7. Write the balanced equation for sodium chloride dissociating in water (The water is not part of the reaction, it just allows the sodium chloride to break up into its ions).
  8. How many ions will 117 g of sodium chloride produce when it dissolves in water?
  9. Write the balanced equation for calcium chloride dissolving in water.
  10. How many ions will 222 g of calcium chloride produce when it dissolves in water?
  11. Which will be better to spread on your icy driveway next winter, a mole of sodium chloride or a mole calcium chloride?  Explain.
  12. A student combines 50 grams of phenol with 950 grams of camphor.  Which is the solute?
  13. What will be the melting and boiling points of a solution formed by dissolving 50 grams of phenol (C6H5OH) in 950 grams of camphor?
  14. What is the concentration of a solution formed by adding 1.5 mol of NaOH to enough water to form 1500 mL of solution?
  15. How many moles of aluminum (III) chloride are there in 200 g?
  16. What is the molarity of a solution formed by dissolving 151 g of barium nitrate in enough water to form 700 mL of solution?
  17. What is the molality of a solution formed by adding 62.0 g of benzene (C6H6) to 1000 mL of cyclohexane (C6H12, density = 0.78 g/mL)?


[MHS Chem page]