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Monday, December 23, 2013

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 base. In this lab we performed numerous trials to find the overprotect along of sulphuric acid resolving power that would neutralize 10.0 mL of sodium hydrated oxide solution and averaged the trials to find the amount; this info 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 pipet of 10.000 mL with an uncertainty of 0.015 mL, a clamp stand, a titration flask(an Erlenmeyer flask) and bromothymol down in the mouth 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 pipet te) Evidence circumvent 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 either sulfuric acid was added, the solution was blazonless and clear. After adding three drops of brymothymol halting indicator, the solution was right away a clear dour colourize.
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In the first and fourth trial, the bromothymol blue indicator caused the solution in the Erlenmeyer flask to pervert a pale white-livered colour from the blue colour that the solution already was after the 10.00mL of acid was add ed. This indicates that the solution was now! acidic. In the second, third and fifth part trial, the bromothymol blue indicator caused 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. analytic thinking Table 2: Calculated Values of the amount of titrant demand to balance the [OH-] in the...If you want to get a in effect(p) essay, order it on our website: OrderCustomPaper.com

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