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Sep 11, 2020 · Then one proceeds by placing 5 mL of the 0.01 M CuSO4 into a 100 mL volumetric flask, then adding distilled water up to the mark. Mix thoroughly stopper, label. My point in writing this last part is to make sure you don't think you take 5 mL of the 0.01 M CuSO4 solution and add 100 mL of distilled H2O because then you will have more than 100 mL ...

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9. Prepare a solution sample of your Unknown. Weigh between 100 to 150 mg of your compound into a 10 mL volumetric flask (record the mass exactly). Add 4 mL of water to dissolve it. If necessary, add 3 M HCl one drop at a time to help your sample dissolve. Once dissolved, add 5.0 mL of 10% ethylenediamine to the 10 mL volumetric flask.

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dried at 100oC and is kept in a desiccator and record the mass in your notebook. Transfer the CaCO3 into clean a 250-mL volumetric flask, using about 100 mL of DI water. 3. Add 6 M hydrochloric acid dropwise until effervescence ceases and the solution is clear (roughly about 20 drops). Dilute with water to the mark and mix the solution ...

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Nov 27, 2012 · When you obtain your unknown, you need to quantitatively transfer it to a 100 mL volumetric flask and dilute it to the mark, resulting in the "prepared" unknown solution. You are to report the results of this "prepared" unknown. 29. .• 2. Transfer exactly 10 mL of the prepared unknown solution into 3 or 4 Erlenmeyer flasks.

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You need to therefore dissolve the 50.964 g AgNO3 in an amount of water less than the total volume (≈100.0 mL) and then dilute the solution to 200.0 mL after all the solute has dissolved. Note that the best glassware to use here is a 200-mL volumetric flask.

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Molar mass of CuSO4.5H2O 250 g/mol 3. Mass in grams needed (1 x 2) = moles x molar mass 1.25 (g)-Weigh out the calculated weight of CuSO4.5H2O using an analytical balance and a small weigh boat to obtain 1.2499 (g) of CuSO 4.5H 2 O-Slowly pour the weighed CuSO 4.5H 2 O into the 50-mL volumetric flask 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 ...

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