BM_225263 - Procedure LEASE NOTE: Titration requires...

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Procedure LEASE NOTE: Titration requires several steps in order to obtain exact results. The procedures described in this lab assume that you have already done the TITRATION TUTORIAL and are familiar with the technique. 1. Take a 150 mL Erlenmeyer flask from the Glassware shelf and place it on the workbench. 2. Add 10 mL of cobalt chloride solution (CoCl2) to the flask. Dilute the solution by adding 10 mL of water. This makes it easier to visualize the endpoint, but remember that the concentration of the CoCl2 solution relates the moles of CoCl2 to the original 10 mL. 3. Add 1 drop of thymolphthalein to the flask. 4. Take a burette from the Glassware shelf and place it on the workbench. 5. Fill the burette with 50 mL of 0.1M sodium hydroxide (NaOH). 6. Drag the flask and drop it on the lower half of the burette to connect them. 7. Open the Data window and click on the flask. Click the Pushpin icon in the blue bar of the Data window to lock its display to the flask's contents. 8. Open the Properties window, click on the burette and click the Pushpin icon in the blue
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BM_225263 - Procedure LEASE NOTE: Titration requires...

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