5 when you have completed the three reagents return

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5. When you have completed the three reagents, return to the Stockroom . Double-click on each bottle to return it to the shelf. Obtain three more samples (two salts and one solution): KNO 3 , BaCl 2 , NH 3 solution, then return to the laboratory. Follow procedure #3 and #4 for BaCl 2 and KNO 3 . For the NH 3 solution, complete the following procedure: Place a beaker on the stir plate. Pick up the NH 3 solution from the stockroom shelf, drag it to the 25 mL graduated cylinder, and let go to fill the cylinder. The solution bottle will automatically go back to the stockroom shelf. Drag the 25 mL graduated cylinder to the beaker on the stir plate and drop it to transfer the solution into the beaker. Place the conductivity meter probe in the beaker and record the conductivity in the data table. 6. When you have completed the three reagents, return to the Stockroom . Double-click on each bottle to return it to the shelf. Obtain two more samples: HCl and HAc (Acetic Acid), and HCN . Measure the conductivity of each solution following procedure #4 and record the conductivity in the data table. Data Table Reagent NaCl Na 2 CO 3 NaHCO 3 KNO 3 BaCl 2 *DI H 2 O Conductivity Mass of solute (g) N/A NH 4 Cl *NH 3 *HCl *HCN HCH 3 CO 2 Conductivity Mass of solute (g) N/A * These substances are aqueous solutions. Therefore, you do not record the mass used. For each of these solutions you measured the conductivity of 25.00 mL of each solution.

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