Question

A reaction that produces great heat for welding and incendiary bombs

is the "thermite" reaction, Fe2O3 (s) + 2Al(s) Al2O3 (s) + 2Fe (s)
How many moles of iron form by the complete reaction of
7.1 9 of iron (III) oxide ?

Answer 1

7.19 g of Fe2O3 will produce 0.092 mole of iron

Step-by-step explanation:

One mole of Fe2O3 reacts with 2 mole of Aluminum to produce one mole of Al2O3 and 2 mole of iron.

Mass of one mole of Fe2O3 = 159.69 g/mol

Thus, 159.69 g/mol of Fe2O3 produces two mole of Fe

7.19 g of Fe2O3 will produce

`(2)/(156.9) * 7.19\\= 0.092`moles of iron