Question #4658d
1 Answer
Dec 18, 2017
Explanation:
- Find the molar mass of the involved substances
#O_2=(32g)/(mol)#
#Fe_3O_4=(232g)/(mol)# - Given the
#mO_2# , convert it to#nO_2# through molar conversion with the relationship provided in the molar mass of#O_2# .
#=2.00cancel(gO_2)xx(1molO_2)/(32cancel(gO_2))#
#=0.0625molO_2# - Now, find the
#nFe_3O_4# . Refer and use the balanced equation as provided for the mole ratio; i.e.,
#=0.0625cancel(molO_2)xx(1molFe_3O_4)/(3cancel(molO_2))#
#=0.02083molFe_3O_4# - Finally, find the
#mFe_3O_4# through the relationship obtainable from the molar mass of the compound to convert mole to mass; thus,
#=0.02083cancel(molFe_3O_4)xx(232gFe_3O_4)/(1cancel(molFe_3O_4))#
#=4.83gFe_3O_4#
