1. Write the equation for the dissolution of Sr(NO3)2 in water. How many moles of strontium ions and nitrate ions are produced by dissolving 0.5 mol of strontium nitrate?
2. Will a precipitate form if solutions of magnesium acetate and strontium chloride are combined?
3. What determines whether a molecular compound will be ionized in a polar solvent?
1. What colligative properties are displayed by each of the following situations?
a. Antifreeze is added to a car’s cooling system to prevent freezing when the air temperature is below 0°C.
b. Ice melts on sidewalks after salt has been spread on them.
2. Two moles of a non-electrolyte solute are dissolved in 1 kg of an unknown solvent. The solution freezes at 7.8°C below its normal freezing point. What is the molal freezing-point
constant of the unknown solvent? Suggest a possible identity of the solvent.