Molar solution problems
[DOC File]Colligative Properties
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The freezing point of this solution is . found to be –0.465oC. What is the molecular mass of the solute? 5. A researcher places 53.2 g of an unknown nonelectrolyte in 505 g napthalene. The nonelectrolyte lowers . napthalene’s freezing point by 8.8oC. What is the molar mass of the unknown substance? ANSWERS: 1. 0.93oC 2. –0.446 oC 3.
[DOC File]AP Chemistry study guide for Solutions (Chapter 11)
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If 25.0 milliliters of 0.200-molar BrO3¯ is mixed with 30.0 milliliters of 0.450-molar Br¯ solution that contains a large excess of H+, the amount of Br2 formed, according to the equation above, is (A) 5.00 x 10¯3 mole (B) 8.10 x 10¯3 mole (C) 1.35 x 10¯2 mole (D) 1.50 x 10¯2 mole (E) 1.62 x 10¯2 mole
[DOC File]Molarity Worksheet #1 - Science Done Wright
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A rabbit pours 500.00 mL of a 3.0000 molar solution of sodium hydroxide into a 2.000 liter volumetric flask and fills the flask up with water. What is the new molarity of the solution? 0.50000 L soln x 3.0000 mol NaOH = 1.5000 mol NaOH
[DOC File]AP Chemistry – Chapter 3, Stoichiometric Relationships ...
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Calculate stoichiometric problems using density of a gas at STP. List . factors that affect solubility . Sample AP Problems (copyright College Board) 15. The weight of H2SO4 (molecular weight 98.1) in 50.0 milliliters of a 6.00-molar solution is (A) 3.10 grams (B) 12.0 …
[DOC File]Solubility Curve Practice Problems Worksheet 1
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On a solubility curve, the lines indicate the concentration of a saturated solution - the maximum amount of solute that will dissolve at that specific temperature. The molar concentration of the substance can be calculated, as shown by this example: Determine the molarity of a saturated NaCl solution at 25°C. Solution
[DOC File]Molarity Notes – H
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Practice Problems: SHOW ALL WORK AND USE PROPER SIG FIGS AND UNITS!!! Calculate the molarity of a solution made by dissolving 29.25g of NaCl in enough water to make 2.00 L of solution. Calculate the molarity of a solution made by dissolving 502g of ammonium nitrate in enough water to make 5.00 L of solution.
[DOCX File]Molarity Practice Worksheet
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For the first five problems, you need to use the equation that says that the molarity of a solution is equal to the number of moles of solute divided by the number of liters of solution. 1)In this problem, simply solve using the molarity equation to find that the concentration of the solution is 10 M.
[DOC File]Molarity Worksheet #1
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12. A rabbit pours 500.00 mL of a 3.0000 molar solution of sodium hydroxide into a 2.000 liter volumetric flask and fills the flask up with water. What is the new molarity of the solution? Solve the following solutions Stoichiometry problems: 1. How many grams of silver chromate will precipitate when 150. mL of 0. 500 M silver nitrate are added ...
[DOC File]Solutions Worksheet #2
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(Molarity, Dilutions, Percent Solutions, Molality Problems) Molarity. Tell how you would prepare a 500. mL of 0.50 M ammonium carbonate solution. Include all necessary equipment and amount of chemical (in grams). What is the molarity of each of the following solutions?
[DOC File]Chapter 13 worksheet #1
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If there is very little solute (dilute solution) then it is a good assumption that the volume does not change and molarity equals molality. What is the molarity of pure water at 4oC? (Hint: Use the density and molar mass of water.) What happens to the concentration of water when a solute is dissolved in it? (1000 g/L) / 18.0 g/mol = 55.6 mol/L
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