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[DOC File]Weebly
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Jan 31, 2014 · Calculate the mass percent, molarity, molality, and mole fraction of NaCl. A solution of phosphoric acid was made by dissolving 10.0g H3PO4 in 100.0mL water. The resulting volume was 104mL. Calculate the density, mole fraction, molarity, and molality of the solution. Assume water has a density of 1.00g/cm3.
molarity to percent by volume

[DOC File]AP Chemistry study guide for Solutions (Chapter 11)
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A pure sample of the compound is analyzed and found to be 65.60 percent C and 9.44 percent H by mass. (a) Determine the empirical formula of the compound. (b) A solution of 1.570 grams of the compound in 16.08 grams of camphor is observed to freeze at a temperature 15.2 Celsius degrees below the normal freezing point of pure camphor.
molarity to percent

[DOC File]Finding the Mass Percent of Acetic Acid in Vinegar
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Last week, you standardized a sample of NaOH and practiced the method of titration. You will need to use those skills this week to determine the acid content of household vinegar. The data you collect from this titration will be used to determine the molarity and the percent by mass …
weight percent to molarity

[DOC File]Molality Worksheet
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What is the molality of a solution that contains .500 mol HC2H3O2 in 0.125 kg H2O? What mass of water is required to dissolve 100. g NaCl to prepare a 1.50 m solution? What mass of water must be used to dissolve 0.500 kg C2H5OH to prepare a 3.00 m solution? What mass of H2SO4 must be dissolved to 2.40 kg H2O to produce a 1.20 m solution?
2.06 molality and mass percent

[DOC File]Molality- the number of moles of solute per kilogram of ...
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Molality is the number of moles of solute per mass of solvent. The molality of a solution is calculated by taking the moles of solute and dividing by the kilograms of solvent. Example #1 - Suppose we had 1.00 mole of sucrose (it's about 342.3 grams) and proceeded to mix it into exactly 1.00 liter water. It would dissolve and make sugar water.
convert molarity to mass percent

[DOC File]Chapter 13 worksheet #1
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Mass of water = mass of solution – mass of NaOH = 1000 g – (0.300 mol)(40 g/mol) = 1000 g – 12 g = 988 g. Molality = 0.300 mol/0.988 kg = 0.304 m. Notice that the molality is a little bigger than molarity. Why are these two numbers similar and why is molality always greater than molarity?
how to get mass percent from molality

[DOC File]Name __________________________________________ Date
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Calculate the mass percent concentration. Here are some combination questions: A solution is prepared by dissolving 50.0 g of cesium chloride in 50.0 g water. The volume of the solution is 63.3 mL. Calculate the molarity, molality, and mole fraction of the solution. An aqueous antifreeze solution is 40.0 % enthylene glycol (C2H6O2) by mass.
molarity to percent composition

[DOC File]Concentration Review Worksheet
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a) What is the molality of sodium hydroxide in this solution? b) What is the percent by mass of sodium hydroxide in this solution? c) What is the mole fraction of sodium hydroxide in this solution? 2) If I make a solution by adding water to 35 mL of methanol (CH3OH) until the final volume of the solution is 275 mL…
how to calculate mass percent from molality

[DOC File]Chapter 13 worksheet #1
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mass fraction and mass (or weight) percent (%) mass fraction = mass of component / total mass of soln. mass % = mass fraction x 100. parts per million/billion/trillion (ppm/ppb/ppt) ppm = (mass fraction) x 106. ... Calculate the molality, mole fraction, mass % and ppm of NaOH in this solution. (You will need the density of water.)
molarity to percent by volume

[DOC File]Chemistry
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Worksheet : Molality, molarity and percent problems Date : A. Review : 1. What is the percent concentration (v/v) of a solution formed by dissolving 20.0 mL of acetone in in 65 mL of ethanol? 2. How many grams of glucose are there in 500.0 mL a 25 % (g/mL) solution of glucose? 3.
molarity to percent

Molality to mass percent