Given that the molecular mass of iron is 56..

Question 1 Report

Given that the molecular mass of iron is 56 and that of oxygen is 16, how many moles of iron(iii)oxide will be contained in 1kg of the compound?

25.0 moles

12.5 moless

6.25 moles

3.125 moles

0.625 moles

Answer Details

Fe2O3 = 56 x 2 + 48 = 160 = 1 moles

1000gm will contain $\frac{1000}{160}$ = 6.25 moles