Molarity of an Unknown Hydrochloric Acid Solution

Molarity of an Unknown Hydrochloric Acid Solution - Unknown...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Molarity of an Unknown Hydrochloric Acid Solution Jenine Hajjar October 22, 2007 Professor Lloyd
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chem 110 Sect. C Purpose The objective of the experiment was to determine the molarity of a hydrochloric acid solution by titration. The titration was done with a standardized solution of sodium hydroxide using phenolphthalein as the indicator. Procedure Refer to pages 22-24 in laboratory notebook for the Molarity of an Unknown Hydrochloric Acid Solution experiment. The only changes to the procedure were to add a row at the bottom of our data table in order to record the molarity of the HCl solution and to disregard trial 3 because it was not needed. Calculations
Background image of page 2
Summary of Results
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Unknown Number : ___46____ Trial 1 Trial 2 Trial 3 Molarity of HCl (mol/L) 0.0741 0.0745 N/ A Average Molarity (moles/L) __.0743__ +/- __.0002__ Conclusion The purpose of the experiment was achieved by determining the average molarity of an unknown solution of HCl using a titration with NaOH and phenolphthalein. The unknown number 46 had an average molarity of .0743 moles/L with a standard deviation of + or - .0002. Possible sources of error would be to add to much NaOH to the HCl solution or not enough phenolphthalein, therefore disturbing the results of the experiment. No data was discarded but a third trial was not performed because it was not necessary....
View Full Document

Page1 / 3

Molarity of an Unknown Hydrochloric Acid Solution - Unknown...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online