Chemistry, 18.12.2020 20:30 exoticbunnylover123

How many grams of CO are needed to react with an excess of Fe 2 O 3 to produce 209.7 g Fe?

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Answer from: sherlock19

Mass = 157.5 g

Explanation:

Given data:

Mass of CO needed = ?

Mass of Fe formed = 209.7 g

Solution:

Chemical equation:

3CO + F₂O₃ → 2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/ molar mass

Number of moles = 209.7 g/ 55.85 g/mol

Number of moles = 3.75 mol

Now we will compare the moles of iron and carbon monoxide.

Fe : CO

2 : 3

3.75 ; 3/2×3.75 = 5.625 mol

Mass of CO:

Mass = number of moles × molar mass

Mass = 5.625 mol × 28 g/mol

Mass = 157.5 g

Answer from: Quest

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Based on the information in the table, which elements are most likely in the same periods of the per

Answer from: Quest

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