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Gravimetric stoichiomerty.... eh? HELP

by nic.harv
Tags: stoichiometry
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nic.harv
#1
Jan26-12, 11:54 PM
P: 9
calculate the mass of iron(III) oxide (rust) produced by the reaction of 500g of iron with oxygen from the air

so i have no idea what do do here, my teacher sucks monkeys balls.



so i thought to do the mass of iron(III) oxide divided by the 500g but i know thats wrong. PLEASE HELP ME! I actually have no idea of what im suppose to do.
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Borek
#2
Jan28-12, 04:07 PM
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Borek's Avatar
P: 23,594
Start with the reaction equation. And check these pages:

How to read reaction equation.

Stoichiometric calculations using ratio & proportions.

Stoichiometric calculations using dimensional analysis.


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