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Original Question
Calculate the molality of a solution prepared by dissolving 225.5 g KNO3 in 825mL of water. Show your workAsked by K
Calculate the molarity of a solution prepared by dissolving 89 g of KNO₃ in 0.525 L of water. Show your work.
Answers
Answered by
bobpursley
0.525 L of water, so assume this is the volume of the solution
Molarity= (89/formulamassKNO3) /.525 L solution
so figure the formula mass of potassium nitrate.
Molarity= (89/formulamassKNO3) /.525 L solution
so figure the formula mass of potassium nitrate.
Answered by
Damon
well, how many grams of KNO3 in a whole liter?
89 / 0.525 = ?
then how many mols is that ?
well 1 mol = 39 + 14 + 3*16 = 101 grams / 1 mol
so
? grams * 1 mol/101 grams
89 / 0.525 = ?
then how many mols is that ?
well 1 mol = 39 + 14 + 3*16 = 101 grams / 1 mol
so
? grams * 1 mol/101 grams