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Please help! 10 points

Read the chemical equation.


Fe2O3 + CO → Fe + CO2


If 3 moles of Fe2O3 react with 1.5 moles of CO, how many moles of each product are formed? (3 points)

1 mole of Fe and 1.5 moles of CO2

0.5 mole of Fe and 1 mole of CO2

6 moles of Fe and 9 moles of CO2

3 moles of Fe and 2 moles of CO2

Sagot :

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Answer:

1 mole of Fe and 1.5 moles of CO2

Explanation:

Fe2O3 + CO → Fe + CO2

This is a trick question.  The equation is not balanced properly.  To start, note that one molecule of Fe2O3 contain 2 Fe atoms, while there is only 1 Fe atom on the product side.  And the oxygens are also missing (from 4 to 2).  We cannot use this equation, as written.

Here's one that is balanced:

Fe2CO3 + 3CO = 2Fe + 3CO2

I'll use this one to answer the question.

1.  If 3 moles of Fe2O3 react with 1.5 moles of CO, how many moles of each product are formed?

The balanced equation tells us that 1 mole of Fe2O3  will react with 3 moles CO to produce 2 moles of Fe and 3 moles of CO2.  If we had enough CO,  3 moles Fe2O3 will produce 6 moles of Fe and 9 moles of CO2.  But note that we'd also need 9 moles of CO for a complete reaction.  We only have 1.5 moles, probably due to Stanley, our new manager.  So we're limited by the CO, and we'll have to delete our first analysis and work from 1.5 moles of CO.

If we have 1.5 moles CO, we'll produce:

1 mole of Fe and 1.5 moles CO2.

Answer:

1 mole Fe and 2 moles CO2

Explanation:

is wrong

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