Question

0.200 M sodium hydroxide (NaOH) being added to 30 mL of hydrochloric acid (HCl) of unknown concentration. Your goal is to measure the volume of sodium hydroxide needed to neutralize the HCl, and calculate the concentration of the HCl. 1) State the volume of NaOH needed for your assigned trial to cause the solution to hover on the edge of being pink. Be sure to state your recording to the correct number of significant digits. After conducting the experiment, the volume of sodium hydroxide needed to neutralize the HCl was 13.48 mL. 2) Determine the concentration of HCl originally in the flask. Be sure to include a balanced chemical equation and all your calculations, including units. The final answer should be reported to the correct number of significant digits. Use a legitimate dimensional analysis setup. It is NOT appropriate to use M1V1=M2V2 for titration calculations.

          0.200 M sodium hydroxide (NaOH) being added to 30 mL of hydrochloric acid (HCl) of unknown concentration. Your goal is to measure the volume of sodium hydroxide needed to neutralize the HCl, and calculate the concentration of the HCl.
    1) State the volume of NaOH needed for your assigned trial to cause the solution to hover on the edge of being pink. Be sure to state your recording to the correct number of significant digits.
    After conducting the experiment, the volume of sodium hydroxide needed to neutralize the HCl was 13.48 mL.
    2) Determine the concentration of HCl originally in the flask. Be sure to include a balanced chemical equation and all your calculations, including units. The final answer should be reported to the correct number of significant digits. Use a legitimate dimensional analysis setup. It is NOT appropriate to use M1V1=M2V2 for titration calculations.

Added by Carrie T.

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