Question #193771

**CONVERTING MOLE TO MASS**

Calculate the number of grams of SO2 that could be produced from 3.25 moles of oxygen (moles 02 →

moles SO2 → g SO2). AW of O = 16 9. S = 32.065 g

4FeS + 702 → 2Fe2O3 + 4SO2 (balanced equation)

Expert's answer

Using mole-mass analysis on balanced chemical reaction we can find amount of SO_{3} produced.

**Solution**

4FeS + 70_{2} → 2Fe_{2}O3 + 4SO_{2}(balanced equation)

7mole of O_{2}"\\to" 4mole of SO_{2}

"\\therefore" 3.25mole of O_{2}"\\to" ?

"\\frac{4\u00d73.25}{7}=1.857" mole of O_{2}

Now:

Molar mass of SO_{2}=[32.065+2(16)]g/mol

="64.065g\/mol"

So:

N.o. of grams of SO_{2}=1.857mol×64.065g/mol

Mass of SO_{2} Formed =118.97g

Therefore :-**118.97g of SO**_{2}** can be produced. **

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