this is my question, how many kg of iron can be produced out of 100 kg of hematite?
2) is hematite (Fe3O4) richer in iron than hematite..
i dont need the answer but i just really need how to count them.. explain it in a way i can understand..
how do i count it and what is the diffrence between hematite and magnetite?
2006-11-09 08:22:51 · 3 answers · asked by orlyandsa 4 in Science & Mathematics ➔ Chemistry
Fe2O3 is Hematite. Fe3O4 is Magnetite.
Smelting Hematite would give:
Fe2O3 + 3 CO --> 2 Fe + 3 CO2
One mole (GMW) of Hematite will give 2 atomic weights of Iron. This means that 159.7 grams of Hematite will produce 2 time 55.8 grams of Iron.
Magnetite contain a higher percentage of Iron than Hematite does. 3 out of 7 atoms is more than 2 out of 5.
2006-11-09 08:30:33 · answer #1 · answered by Richard 7 · 74⤊ 0⤋
Work out the Relative molecular mass of Hematite which is 232 and work out the amount of Iron in it which is 168 so you know 232kg of hematite gives you 168kg of Iron. Then work out the ratio of Iron to Hemetite by dividing both sides by 232 so now you know 1kg of Hemitie gives you 0.724kg of iron then times the 0.724 by 100 to get your answer which is 72.4kg.
The trick is to work out the ratio and then find the answer from that.
Hemitite and Magentite are the name of the ore's iron is found in. Magentite however is basically Iron oxide in it's ore (not pure iron)
2006-11-11 17:17:24 · answer #2 · answered by Eoin W 1 · 0⤊ 0⤋
I would suggest measuring the in moles.
2006-11-09 16:31:53 · answer #3 · answered by Rigger Rigby 2 · 0⤊ 0⤋