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Mass percent of iron ore sample?

A 0.1300 g iron ore sample was dissolved in hydrochloric acid and the iron was obtained as Fe2+(aq). The iron solution was titrated with Ce4+ solution according to the balanced chemical reaction shown below. After calculation, it was found that 0.0259 g of iron from the ore reacted with the cerium solution.Ce4+(aq) + Fe2+(aq) -gt; Ce3+(aq) + Fe3+(aq)Calculate the mass percent of iron in the original ore sample.

Answer:

yes those countries are loosing money on them. they are heavily subsidized by tax dollars to make them feasible. the biggest reason though is the american love affair with the car. a car has become such an expression of self identity that most people won't give theirs up, even when gas is $4 per gallon.
0.0259 x 100/ 0.130019.9 %
yes those countries are loosing money on them. they are heavily subsidized by tax dollars to make them feasible. the biggest reason though is the american love affair with the car. a car has become such an expression of self identity that most people won't give theirs up, even when gas is $4 per gallon.
Just look at how much power the big 3 Detroit automakers have in Washington. That and the oil companies. The government will never do anything that would create competition for them. And yes, most rail systems lose money. But not as much as the Interstate highway system loses.
I often end up posting the same thing on other sites
% via mass of Fe2O3 (mass of organic Fe2O3 / mass of iron ore) x one hundred% mass of Fe2O3 (organic) (mass of iron produced / MW of iron) x ( stoichiometric mole ratio of Fe2O3 over Fe based on the given chemical reaction x MW of Fe2O3 mass of iron produced 453 g MW of Fe fifty 5.eighty 5 stoichiometric mole ratio of Fe2O3/Fe a million/2 MW of Fe2O3 159.7 mass of organic Fe2O3 (453/fifty 5.eighty 5) x (a million/2) x 159.7 mass of organic Fe2O3 647.sixty six grams %via mass of Fe2O3 (647.sixty six / 752) x one hundred 86.13 %
Just look at how much power the big 3 Detroit automakers have in Washington. That and the oil companies. The government will never do anything that would create competition for them. And yes, most rail systems lose money. But not as much as the Interstate highway system loses.
I often end up posting the same thing on other sites
% via mass of Fe2O3 (mass of organic Fe2O3 / mass of iron ore) x one hundred% mass of Fe2O3 (organic) (mass of iron produced / MW of iron) x ( stoichiometric mole ratio of Fe2O3 over Fe based on the given chemical reaction x MW of Fe2O3 mass of iron produced 453 g MW of Fe fifty 5.eighty 5 stoichiometric mole ratio of Fe2O3/Fe a million/2 MW of Fe2O3 159.7 mass of organic Fe2O3 (453/fifty 5.eighty 5) x (a million/2) x 159.7 mass of organic Fe2O3 647.sixty six grams %via mass of Fe2O3 (647.sixty six / 752) x one hundred 86.13 %
0.0259 x 100/ 0.130019.9 %

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