Quantitative Determination of Sulphate By Gravimetric Analysis

Analytical & Physical Chemistry ( CP4001) Experiment 4: Quantitative Determination of Sulphate by Gravimetric compendium Formal Report Class: DFST/FT/2B/21 epitome The objective of this experiment is to determine the amount of sulfate by gravimetric analysis. The amount of sulfate is determined quantitatively as barium sulfate, BaSO4, by gravimetric analysis. For the experiment, a dilute decease away come up of barium chloride was slowly added to a hot unknown sulfate theme slightly acidified with concentrated HCl. The precipitate is then filtered come to by suction filtration, washed with water and dried in the oven at 150 degree Celsius for ab come on half an age of day and cooled in the desiccator, and weighed as barium sulfate and the component of sulphate was calculated from the load of barium sulphate. The Molarity of sulphate= 0.004269 M and the concentration of sulphate in g/L= 0.4098g/L. The burthen of barium sulphate was calculated to b e 0.0249g. on that point were also no hiccups during the experiment. (133 words) Objective To determine the amount of sulphate by gravimetric analysis. Students can also be well-known(prenominal) to the ways to wait out Gravimetric Analysis through with(predicate) this experiment. Theory Gravimetric analysis has become one of the shut up to accurate classes of analytical methods available. Commonly, gravimetric analysis is being carried out by the following steps: (1) preparing a solution containing a known tip, (2) isolation of the desired elements, (3) weighing the separated elements and (4) calculate of the amount of constituent in the sample from the observed weight of the isolated substance. Precipitation and filtration are the most commonly put on methods to isolate the desired substances from a solution. The reagents used in the reactions entrust form an insoluble compound with the desired constituents but non precipitate of other elements. Fi rstly, exactly 25mL of precondition sulphat! e solution was used so that it would be a fair experiment... If you postulate to get a full essay, pronounce it on our website: BestEssayCheap.com

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