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[DOC File]AP Chemistry study guide for Solutions (Chapter 11)
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One point earned for determination of molarity One point earned for conversion of molarity to molar mass . OR, moles solute = ( T x kg solvent) / Kf = 0.00611 mol (one point) molar mass = 1.570 g / 0.00611 mol = 257 g / mol (one point) OR, molar mass = (mass x Kf) / ( T x kg solvent) = 257 g / mol (two points)
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[DOC File]Acids and bases review sheet Answer key
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Sep 08, 2011 · 8) You are given a solution of 0.165 M HCl and are told to find the molarity of an unknown NaOH solution. It takes 35.92 mL of NaOH and 23.62 mL of HCl to reach the endpoint. What is the molarity of the NaOH solution? Ma .Va = Mb . Vb. Mb = .19 M. 9) A 3.0 mL sample of HNO3 solution is exactly neutralized by 6.0 mL of 0.50 M KOH.
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[DOC File]Solubility Curve Practice Problems Worksheet 1
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Determine the molarity of a saturated NaCl solution at 25°C. Solution. We can see from the curve that about 38 g of NaCl dissolves in 100mL at 25°C. Molarity, M, has the units mol·L-1, so we want to convert 38g ·100mL-1 to mol·L-1. We will use unit analysis to do this. First, however, let's convert mL to L: 38g . 100mL × 10 . 10 = 380g ...
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[DOC File]Solutions Worksheet
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Give examples of each. Solution: When one thing dissolves in each other – a homogeneous mixture (salt water, etc). Colloid: When very small particles of one thing are suspended in another in a stable fashion (milk, etc). Suspension: When larger particles of one thing are suspended in another and eventually settle out (ketchup, peanut butter). ...
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[DOC File]Neutralization Reactions Worksheet
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Date: _____ Neutralization Reactions Worksheet. 1. Write the balanced chemical equations for the neutralization reactions between:
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[DOC File]Percent by Mass (#1-5) and Molarity Calculations
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Molarity Notes and Examples (Molarity is the moles of a solute per liter of solution) ***Molarity = mol Units are “M” L . 1. What is the molarity of 3.5 L of solution that contains 90 g of sodium chloride? 2. How many moles of HCl are present in 0.8 L of a 0.5 M HCl solution? 3.
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[DOC File]Unit 10
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What is the molarity of the acid? A student makes an acid by dissolving 34 grams of KHSO4 in 150 mL of water. The student then uses 32.6 mL of the KHSO4 acid to titrate 12.1 mL of a KOH base of unknown molarity. Calculate the molarity of the KHSO4 acid. Calculate the molarity of the KOH base solution
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[DOC File]Chapter 13 worksheet #1
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Molality is greater than molarity because the volume increases when the solute dissolves in water so now the volume of the solution is greater than the mass of the water. If there is very little solute (dilute solution) then it is a good assumption that the volume does not change and molarity equals molality.
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[DOC File]Molarity Practice Worksheet
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Molarity Practice Worksheet. Find the molarity of the following solutions: SHOW WORK AND UNITS OR NO CREDIT. 0.25 moles of sodium chloride is dissolved to make 0.05 liters of solution..34 moles of calcium chloride is dissolved to make 2.5 liters of solution. 2.9 moles of magnesium chloride is dissolved to make 3.4 liters of solution.
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[DOC File]Concentration Worksheet
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5) What is the molarity of a solution in which 0.45 grams of sodium nitrate are dissolved in 265 mL of solution. 0.020 M. 6) What is the mole fraction of sulfuric acid in a solution made by adding 3.4 grams of sulfuric acid to 3,500 mL of water? 1.8 x 10-4 7) What will the volume of a 0.50 M solution be if it contains 25 grams of calcium hydroxide?
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Molarity examples and answers