Solution-Calculate the ph of the final mixture

Calculate the ph of the final mixture

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Reference no: EM132509041

-A sample of pyrite, FeS2(MW=119.97), contains only inert impurities and weights 0.5080 g. After the sample has been decomposed and dissolved, a precipitate of 1.561 g of BaSO4 (MW=233.40) is obtained. If the calculated percentage of S (MW=32.06) in the sample is 42.21% what weight of ignited precipitate would have been obtained if the Fe (MW=55.85) in the solution had been precipitated as Fe (OH)3and ignited as Fe2O3(MW=159.7)?

-In 100 mL of 0.2 M NH3 solution was added 50 mL of 0.3 M NH4Cl solution. If Kb of NH3 is 1.75 x 10-5, calculate the pH of the final mixture.

-An indicator which is a weak monobasic acid is blue in a strongly acid solution and yellow in a strongly basic one. If Kind is 10 - 10, what is the pH when 40% of the indicator is in the yellow form?

Reference no: EM132509041

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Calculate the ph of the final mixture : A sample of pyrite, FeS2(MW=119.97), contains only inert impurities and weights 0.5080 g. After the sample has been decomposed and dissolved

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Calculate the ph of the final mixture

Reference no: EM132509041

Reference no: EM132509041

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