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Unformatted text preview: Concentration: There are two kinds of concentration that we need to be able to use this year: Solution Liters Solute Moles Molarity = Symbol for molarity: M = molar = mol L 1) How many moles of sodium carbonate are in 0.045 L of a 2.5 M solution? 2) How many liters of 0.50 molar solution contain 0.00040 moles of solute? 3) If you dissolve 35 grams of copper sulfate in water and the total volume of solution is 250 mL, what is the molarity of the solution? 4) 28.4 grams of sodium chloride are dissolved in 100 mL of water. The final volume of solution is 103 mL. Calculate the molarity of the solution. (Hey, whats the density of water again?) 5) If you evaporate 25 mL of a 3.0 M solution of copper (II) chloride to dryness, how many grams of solid copper (II) chloride should be left in the beaker?...
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 Spring '08
 Graham

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