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.
What is the difference
between freezing point, melting point, and boiling point?
What is the normal
boiling point of water?
What is the normal
freezing point of water?
What is the normal
melting point of ice?
What is the shape
of the water molecule?
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.
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).
How many ions will
117 g of sodium chloride produce when it dissolves in water?
Write the balanced
equation for calcium chloride dissolving in water.
How many ions will
222 g of calcium chloride produce when it dissolves in water?
Which will be better
to spread on your icy driveway next winter, a mole of sodium chloride or
a mole calcium chloride? Explain.
A student combines
50 grams of phenol with 950 grams of camphor. Which is the solute?
What will be the
melting and boiling points of a solution formed by dissolving 50 grams of
phenol (C6H5OH) in 950 grams of camphor?
What is the concentration
of a solution formed by adding 1.5 mol of NaOH to enough water to form 1500
mL of solution?
How many moles of
aluminum (III) chloride are there in 200 g?
What is the molarity
of a solution formed by dissolving 151 g of barium nitrate in enough water
to form 700 mL of solution?
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)?