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Chemistry 6 Online
OpenStudy (anonymous):

PLEASE HELP!!!? Could you explain it in a way that a little kid would understand? I'm trying to explain it to my nephew. He's 14. What is the limiting reactant when 6.8 moles of iron react with 8.9 moles of oxygen gas? Unbalanced equation: Fe + O2 → Fe2O3 Show, or explain, all of your work along with the final answer.

OpenStudy (chmvijay):

limiting reactant mean reactant which is not present after the reaction is over , you just find it in this

OpenStudy (chmvijay):

just balance the reaction then i can solve it for you

OpenStudy (anonymous):

4Fe + 3O2 → 2Fe2O3

OpenStudy (chmvijay):

4 mole of Fe and 3 mole of O2 gives rise to 2 moles of Fe2O3

OpenStudy (chmvijay):

if 6.8 moles of FE is there than how much oxygen is needed =3*6.8 /4=5.1moles of oxygen is sufficient to react with 6.8 moles of Fe , but oxygen is around 8.9 moles there fore Fe is not present at the end of reaction bcoz it has been reacted with oxygen and o2 remains excess wat the end point now you tell me which is limiting agent

OpenStudy (anonymous):

Fe?

OpenStudy (chmvijay):

yaaa you are right

OpenStudy (chmvijay):

good

OpenStudy (anonymous):

Thanks :)

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