The chloride in the sample is to be determined gravimetrically by precipitating and weighing AgCl. What weight in grams of sample should be taken so that the percentage of Cl is obtained by simply multiplying the weight of the AgCl precipitate by 10?
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The chloride in the sample is to be determined gravimetrically by precipitating and weighing AgCl. What weight in grams of sample should be taken so that the percentage of Cl is obtained by simply multiplying the weight of the AgCl precipitate by 10?
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- The chloride in a sample containing approximately 3.5 % NaCl is to be determined gravimetrically as AgCl. What weight of sample must be taken to obtain a precipitate that will weigh about 0.10 g?A 0.6407g sample containing chloride and iodide ions gave a silver halide precipitate weighing 0.4430g. This precipitate was then strongly heated in a stream of chlorine gas to convert the AgI to AgCl; on completion of this treatment, the precipitate weighed 0.3181g. Calculate the percentage of chloride and iodide in the sample.True or False: Blank titration is indicated for the determination of the concentration of a sample. Can you please expound why?
- What wt of magnetite should be taken for analysis in order that after converting to a precipitate of Fe2O3.xH2O, the percentage of Fe3O4 in the sample can be found by multiplying the wt in grams of the ignited precipitate (Fe2O3) by 100.A sample of soluble salt weighs 1.2 g and contains chloride, bromide and iodide. With AgNO3, a precipitate is obtained which weighs 0.4500 g. On heating this precipitate with Cl2 gas, the AgBr and AgI are converted to AgCl, and the precipitate then weighs 0.3300 g. A similar sample, when treated with palladous chloride, precipitates only PdI2, and this precipitate weighs 0.0900 grams. (*)Find the approximate percentage of chlorine, bromine and iodine in the sampleWhat quantity of sample should be taken for the analysis if it contains 16.2% chloride and the analyst wishes to obtain an AgCl precipitate weighing 0.600 g.
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- 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately 100 mL of distilled, degassed water and indicator was added. The end point was reached after 21.35 mL of 0.09854 M NaOH solution was titrated into the solution. What is the percentage of KHP in the original sample?Solve this gravimetric analysis problem. For the determination of Zn (AW = 65) gravimetrically in a sample it is precipitated and weight as Zn2Fe (CN)6 (mw = 342).• Calculate the weight of Zn in a sample which gives 0.35 g precipitate.• Calculate the weight of the precipitate which can be produced by a sample containing 0.5 g Zn?A mixture of NaBr, Nal and NaNO3 weighs 0.6500 g. With AgNO3, a precipitate of the two halides is obtained and is found to weigh 0.9390 g. When heated in a current of C2, the precipitate is converted entirely to AgCi weighing 0.6566 g. What is the %NaNO3 in the original sample?