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Chapt. 12 Solutions

Chapt. 12 Solutions. Sec. 1 Concentration. Units of Concentration I. solvent + solute. Units of Concentration II. (3) Mole Fraction (Chapt. 6). Units of Concentration III. (4a) Mass Percent. (4b) parts per xxx. Example: Unit Conversion.

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Chapt. 12 Solutions

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  1. Chapt. 12Solutions Sec. 1Concentration

  2. Units of Concentration I solvent + solute

  3. Units of Concentration II (3) Mole Fraction (Chapt. 6)

  4. Units of Concentration III (4a) Mass Percent (4b) parts per xxx

  5. Example: Unit Conversion The density of a 12.0% sulfuric acid (H2SO4, molar mass = 98.08 g/mol) solution is 1.080 g/mL. What is:(a) the molarity of this solution? (easy)(b) the molality of this solution? (hard)

  6. Student Problem Calculate (a) the molarity (easy) and (b) the mole fraction (hard) of alcohol (C2H5OH, MW= 46.07 g/mol), in a wine that has an alcohol concentration of 7.50 mass percent. Take the density of the solution to be 1.00 g/mL.

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