Asked by lauren
I still do not understand how to figure out this problem yet?
6FeO3----->4Fe304+02 DELTA H=+ 392kj
If 2.83 g of Fe2O3 decomposed according to the above reaction , how many kj of heat would be exchanged with the enviroment?
chem - DrBob222, Thursday, October 15, 2009 at 11:11pm
2.83 g Fe2O3 is how many moles?
6 moles Fe2O3 uses 392 kJ, so ?? moles will use xx kJ.
6FeO3----->4Fe304+02 DELTA H=+ 392kj
If 2.83 g of Fe2O3 decomposed according to the above reaction , how many kj of heat would be exchanged with the enviroment?
chem - DrBob222, Thursday, October 15, 2009 at 11:11pm
2.83 g Fe2O3 is how many moles?
6 moles Fe2O3 uses 392 kJ, so ?? moles will use xx kJ.
Answers
Answered by
DrBob222
You haven't done anything yet except retype the problem. How many moles is in 2.83 g Fe2O3?
If 6 moles Fe2O3 uses 392 kJ heat, how much heat would be used by 3 moles Fe2O3? Suppose that would be half of 392? Use the same reasoning to determine heat used by moles in 2.83 g Fe2O3.
If 6 moles Fe2O3 uses 392 kJ heat, how much heat would be used by 3 moles Fe2O3? Suppose that would be half of 392? Use the same reasoning to determine heat used by moles in 2.83 g Fe2O3.
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