Transcription of Chemistry 11 Mole Fraction/Molality Worksheet Date
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Chemistry 11 Mole Fraction/Molality Worksheet Date
Chemistry 11 Mole Fraction/Molality Worksheet Name: Date: 1. A solution is prepared by mixing g of water, H2O, and g of ethanol, C2H5OH. Determine the mole fractions of each substance. 2. The molality of an aqueous solution of sugar (C12H22O11) is Calculate the mole fractions of sugar and water. 3. Calculate the molality of grams of KBr dissolved in mL pure water. 4. What is the molality of NaCl in an aqueous solution which is molar? The density of the solution is x 103 g/L. 5. Calculate the molarity of a m aqueous RbCl solution with a density of g/mL. 6. Calculate the molality of a solution containing g of dissolved naphthalene (C10H8) in g benzene (C6H6). 7. An aqueous solution is prepared by diluting mL acetone (d = g/mL) with water to a final volume of mL.
7. An aqueous solution is prepared by diluting 3.30 mL acetone (d = 0.789 g/mL) with water to a final volume of 75.0 mL. The density of the solution is 0.993 g/mL. What are the molarity, molality and mole fraction of acetone in this solution? 8. The molality of an aqueous solution of sugar (C12H22O11) is 1.62m. Calculate the mole fractions
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