In the preparation of Iron from haematite (Fe_(2)O_(3)) by the reaction with carbon Fe_(2)O_(3)+CrarrFe+CO_(2) 94.5 kg of 10x% pure Iron could be produced from 120 kg of 90%pure Fe_(2)O_(3)? Find the value of x.

In the preparation of Iron from haematite (Fe_(2)O_(3)) by the reactio

1.	In the preparation of Iron from haematite (Fe_(2)O_(3)) by the reaction with carbon Fe_(2)O_(3)+CrarrFe+CO_(2) 94.5 kg of 10x% pure Iron could be produced from 120 kg of 90%pure Fe_(2)O_(3)? Find the value of x.
Answer» SOLUTION :`2Fe_(2)O^(3)+3Crarr4Fe+3CO_(2)` `2xx160g rarr4xx56gm` `(90)/(100)xx120 RARR(10x)/(100)xx94.5implies x=8`