Titration Lab – Chem 11

Titration is a technique used to find the amount of an aqueous solution required to have a complete reaction with another aqueous solution. In this lab, titration was used to find the milliliters of NaOH (Sodium Hydroxide) required to neutralize HCl (Hydrochloric acid). Phenolphthalein was used as an indicator to tell us when we were nearing the endpoint of the titration. The endpoint of a titration is the point where the reaction is complete and adding more of the reactant will make the pH indicator change color. The endpoint of this titration was when the indicator (phenolphthalein) turned light pink and was taking time to turn clear. The purpose of this lab was to find the molarity of the hydrochloric acid. The molarity was calculated to be 0.134M ± 1.1%.


CommunicationCC: During this lab, me and my partner Deven, communicated with each other and distributed our work load evenly to execute the lab efficiently. We communicated with other groups to compare and contrasts our results and asked each other questions if we had any. For next time, we would pre-plan the strategy for the lab to make the lab more efficient and the work load on us lighter. We would also practice our technique more next time to make the lab work more accurate.

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