Lecture Note - Concentration

# Lecture Note - Concentration - Solution Concentration...

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Solution Concentration Molarity Molarity is define as the number of moles of solute per liter of solvent. What is the Molarity of a solution prepared by dissolving 8.0 grams of NaOH in H 2 O so that the final volume is 250 ml? First convert grams to moles: Then calculate the molarity Mass Percent Calculate the the mass percent of ethanol in a solution prepared by mixing 1.00 g of ethanol C 2 H 6 O with 100.0 g of H 2 O. Dilution How many milliliters of 16 M HNO 3 must be used to prepare 1.0 liters of a 0.10 M HNO 3 solution?

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So 6.2 ml of 16 M HNO 3 diluted to 1 liter will give 0.10 M HNO 3 . Solution Stoichiometry Calculate the minimum amount (in liters) of a 0.050 M BaCl 2 solution that is required to precipitate all the SO 4 2- (aq) in 0.10 liter of a 0.10 M Na 2 SO 4 solution. Ba 2+ (aq) + SO 4 2- (aq) → BaSO 4 In order to use the chemical equation we need to work in terms of moles. The concentration of SO 4 2- (aq) is converted into moles by multiplying by the volume. Titrations
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## This note was uploaded on 07/31/2008 for the course CHY 152 taught by Professor Foucher during the Winter '08 term at Ryerson.

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Lecture Note - Concentration - Solution Concentration...

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