30.  What is the volume percent of a solution prepared by dissolving 20 g of KOH in enough

water to make a final volume of 120 mL? Show your work.  How many mL of a 5% solution can be made from the solution in part a? Show your work

31. (a) Given that the molar mass of H₂SO₄
is 98.1 grams, determine the number of grams of H₂SO₄
needed to prepare 0.2 L of a 0.5 M H₂SO₄ solution. Show your work.  (b)  What volume, in Liters, of a 0.5 M H₂SO₄
solution can be prepared by diluting 100 mL of a 4 M H₂SO₄
s

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