Hydrochloric acid solution is toxic and corrosive and can cause burns. Prevent c

Question

Hydrochloric acid solution is toxic and corrosive and can cause burns. Prevent contact with your eyes, skin, and clothing. Avoid inhaling any vapors or ingesting the solution. If you spill any HCI solution, immediately notify your laboratory instructor. 1. Label a clean, dry 100-mL beaker "HCI solution." Obtain from your laboratory instructor approximately 25 mL of an HCl solution in this beaker. Record your sample number on your Data Sheet. 2. Rinse a clean 10-mL volumetric or transfer pipet twice with 5-mL portions of your HCl solution each time. Discard the rinse solutions in a 250-mL beaker that you have labeled "Discarded NaOH and HCI Solutions." CAUTION Never use mouth suction to draw liquid or solution into a pipet. Always use a rubber suction bulb to draw liquid into a pipet. OTE: Your laboratory instructor will describe and demonstrate the proper proced r filling a pipet and controlling the liquid level. Volumetric and transfer pipets are librated to deliver the specified volume of liquid excluding the liquid remaining in

Explanation / Answer

3) HCl is a strong acid when distilled water is added the acid is completely ionized in it therefore, more number of H+ ions are formed in the solution present in the flask. Now when a strong base NaOH is added the neutralization reaction occurs as H+(aq) + OH-(aq) ----> H2O. This results in the increase in pH of the solution. Hence, distilled water is added for the complete ionization of HCl.

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