Question

The first question is "how many moles of carbon monoxide (co) are required to react completely with 1.75 moles of iron (iii) oxide (fe2o3)? "if this is not the question you see, click new questions until it appears) what unit is given in the question? what quantity is asked for?

Answer 1

According to your equation, for every mole of iron oxide (Fe2O3), it takes 3 moles of carbon monoxide (CO). So for 1.75 moles, it takes 3 times as many moles of CO.

1.75 x 3 = 5.25 moles of CO.

I think your product is CO2. Dalton's Law sayeth that the coefficients tell us the ratios of moles. So if you hve 1.75 moles of Fe(III)oxide, 3*1.75 moles of CO are needed (in theory) to react completely. The answer is requested in moles, so you need go no further.

Answer 2

Answer:

5.25 moles of carbon monoxide are required.

Explanation:

$Fe_2O_3(s) + 3CO(s)\rightarrow 2Fe(l) + 3CO_2(g)$

Moles of of iron (iii) oxide = 1.75 moles

According to reaction , 1 mole of iron (iii) oxide reacts with 3 moles of carbon monoxide.

Then 1.75 mol of iron (iii) oxide will react with :

$\frac{3}{1}\times 1.75 mol=5.25 mol$ of iron (iii) oxide

5.25 moles of carbon monoxide are required.