If iron ore is Fe2O3
a. Find its formula mass.
b. Calculate the percent by mass of the ore that is iron.
c. calculate the mass of iron that can be obtained from 500 grams of iron ore.
Show your work please? :)

Question

If iron ore is Fe2O3
a. Find its formula mass.
b. Calculate the percent by mass of the ore that is iron.
c. calculate the mass of iron that can be obtained from 500 grams of iron ore.
Show your work please? :)

sk8teroy · Answer

a. Formula mass is the mass in its simplest ratio. Fe2O3 cannot be simplified further. Therefore its formula mass is: mass of Fe * 2 + mass of O * 3 

b. (mass of Fe*2)/answer in (a) * 100%

c. answer in (b) * 500

anonymous · Answer

Thank You :)