Yield Lab
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Title: Yield Lab

Essay Details:

Subject: Science
Author: Dennis G
Date: March 18, 2016
Level: University
Grade: C
Length: 3 / 878

Essay text:

Then titrate ? of the estimated amount number of mL of NaOH needed to react with the sulphate solution. Then add 5 mL at a time NaOH until Cu(OH)2 precipitate does not form. Record the correct number off mL which forms to NaOH solution. Fold the filter paper and stick inside the funnel, and pour the solution of copper (II) hydroxide through the filter. The purpose of this experiment is to determine the yield of copper (II) sulphate reaction. Reagent preparation: 0.5 mol/L = mol/0.1L 0.5 (0.1L)=mol mol = 0.05 0.05 x 40 (molar mass)= 2 There are 2 grams of solid sodium hydroxide. Method: Weigh 100 mL beaker Transfer anhydrous copper (II) sulphate to that beaker Heat beaker at level 6 for 3 minutes, stirring occasionally Removing beaker from balance and weigh after cooling for 3 minutes Turn off heater (or leave for next group) Measure 100 mL of distilled water into a graduated cylinder and place in 100 mL beaker with the copper (II) sulphate Heat and mix until solid material is all gone Let cool for 5 minutes Measure 20 mL of CuSO4 into 200 mL beaker, and add 100 mL of water Calculated mol of CuSO in solution and the mol/L concentration Predict how many mL of 0...

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