Percent by mass of iron in the complex salt Average percent by mass iron Calcula

Question

Percent by mass of iron in the complex salt Average percent by mass iron Calculation of empirical Formula of the C complete Salt A. Using the average percent's by mass calculated in Part II. show a calculation of the moles of iron and moles of oxalate in a 100.0 g sample of your complex salt. moles of oxalate in a 100.0 g sample of your complex salt: moles of iron in a 100.0 g sample of your complex salt: Show the calculation of the smallest whole-number mole ratio of oxalate to iron in your complex sail.

Explanation / Answer

take the percentage of the iron and oxalate.

frox exmple: iron = 5.1% ( means 5.1 grams iron present in 100 grams sample)

No of mol of Iron = weight / molecularweight = 5.1/55.845 = 0.0913 mol

note : similarly calculate No of mol of oxalate and take the ratio of the two

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