Question

3. Iron (III) oxide reacts with magnesium to produce magnesium oxide and iron. If 0.25

moles of magnesium are consumed, what mass of iron will be produced?

Answer 1

`\\ \rm\longmapsto Fe_2O_3+3Mg\longrightarrow 3MgO+2Fe`

• 3 moles of Mg produces ,2 mol FE
• 1mol of Mg produces 2/3=0.6mol Fe

0.25mol will produce

• 0.25(0.6)=0.15mol

Mass of Fe

• 0.15(56)=8.4g