200kg iron ore Fe2O3 containing 20% impurities on reductions with CO gives iron. The amount of iron produced will be? A-84kg,b-56kg,d-200kg,d-112kg
 

Asked by amitjena226 | 30th Nov, 2017, 10:32: AM

Expert Answer:

space space space space space space space space Molar space mass space of space Fe subscript 2 straight O subscript 3 space equals space space 159.69 space straight g

space space 200 space kg space 100 percent sign space pureFe subscript 2 straight O subscript 3 space equals space 200 space kg space Fe subscript 2 straight O subscript 3 space

therefore 200 space Kg space 20 percent sign space impure space Fe subscript 2 straight O subscript 3 space space equals 40 space space kg space

space space space space space space space space So comma space pure space Fe subscript 2 straight O subscript 3 space space equals space space 200 minus 40
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 160 space Kg space Fe subscript 2 straight O subscript 3 space
space space space space space space space space space
space space space space space No. space of space moles space of space Fe subscript 2 straight O subscript 3 space equals space fraction numerator 160 cross times 10 cubed space straight g over denominator 159.69 end fraction
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 1.019 space cross times 10 cubed space moles space

space space space Fe subscript 2 straight O subscript 3 space space space plus 3 CO space space space rightwards arrow space 2 Fe space plus space 3 CO subscript 2
space
therefore space 1 space moles space space of space space Fe subscript 2 straight O subscript 3 space gives space 2 space mole space of space Fe

space 1.019 space cross times 10 cubed space moles space space of space space CaCO subscript 3 space end subscript space will space give space space space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 2 cross times 1.019 space cross times 10 cubed moles space of space Fe
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 2.003 cross times 10 cubed moles space of space Fe

1 space mole space of space Fe equals space 55.85 space straight g

2.003 cross times 10 cubed moles space of space Fe space equals space 2.003 cross times 10 cubed space cross times 55.85
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 11191 space straight g
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 111.9 space space Kg space space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 112 space Kg space of space Fe
space space space space space space space space space space space space space space space space space space

Answered by Varsha | 30th Nov, 2017, 02:13: PM