Titration Lab

The purpose of this lab was to perform a titration on 10.000 mL of sodium hydrated oxide root with 0.10 mol/L sulphuric panelling beginning. In this lab we performed numerous trials to find the master along of sulphuric acid resolving that would neutralize 10.0 mL of sodium hydroxide solution and averaged the trials to find the amount; this information could then(prenominal) be used to find the concentration of the sodium hydroxide solution through solution stoichiometry. To do this we used a burette with the capacity of 50.00 mL with an uncertainty of 0.04 mL, a pipette of 10.000 mL with an uncertainty of 0.015 mL, a clamp stand, a titration flask(an Erlenmeyer flask) and bromothymol blasphemous indicator. The apparatus was set up like so; 0.00mL (graduation at top) Burette contains 0.10M H2SO4(aq) 50.00mL (graduation at bottom) Erlenmeyer flask contains 10.000mL of NaOH (aq) as well as bromothymol black indicator (10.000mL was measured with a pipette) E vidence give in 1: Raw Data collected from the Titration Lab screening the sign and final burette readings of the titrant of 0.10M ± 0.005M H2SO4(aq) Qualitative Observations Before each sulfuric acid was added, the solution was blazonless and clear. After adding three drops of brymothymol lame indicator, the solution was right away a clear bluish chroma.

In the first and fourth trial, the bromothymol blue indicator caused the solution in the Erlenmeyer flask to work on a pale discolour colour from the blue colour that the solution already was subsequently the 10.00mL of acid was added. This indicates that the solution was now acidic. In the second, third and one-fif th trial, the bromothymol blue indicator cau! sed the solution in the Erlenmeyer flask to turn a pale green colour from the blue colour that the solution already was after the respective amounts of acid was added to the solution. This indicates that the solution was now neutral, or close to a pH of 7. synopsis Table 2: Calculated Values of the amount of titrant infallible to balance the [OH-] in the...If you want to get a estimable essay, order it on our website: OrderEssay.net

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