2. 0.4852 g sample of iron ore is dissolved in acid, oxidized to +3 state and precipitated as Fe,03XH,0. The precipitate is filtered, washed and ignited at 1000 °C to Fe,0, (159.6882) which weighed 0.2481 g. Calculate % Fe (55.845) in the sample.

2. 0.4852 g sample of iron ore is dissolved in acid, oxidized to +3 state and precipitated as Fe,03XH,0. The precipitate is filtered, washed and ignited at 1000 °C to Fe,0, (159.6882) which weighed 0.2481 g. Calculate % Fe (55.845) in the sample.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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2. 0.4852 g sample of iron ore is dissolved in acid, oxidized to +3
state and precipitated as Fe,03 xH,O. The precipitate is filtered,
washed and ignited at 1000 °C to Fe,0, (159.6882) which
weighed 0.2481 g. Calculate % Fe (55.845) in the sample.
3. A sample containing only CaCO3 (100.0869) and
MgCO3 (84.3139) was ignited and carbonates converted to
their oxides. The mass of the oxides is equal to half the original
mass of the sample. Calculate % CaCO3 and % MgCO3 in the
sample. CaO(56.0774) MgO (40.304)

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