Answer to Question #193771 in General Chemistry for Jaz

Question

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)

Answer 1

Using mole-mass analysis on balanced chemical reaction we can find amount of SO₃ produced.

Solution

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

7mole of O₂$\to$ 4mole of SO₂

$\therefore$ 3.25mole of O₂$\to$ ?

$\frac{4×3.25}{7}=1.857$ mole of O₂

Now:

Molar mass of SO₂=[32.065+2(16)]g/mol

=$64.065g/mol$

So:

N.o. of grams of SO₂=1.857mol×64.065g/mol

Mass of SO₂ Formed =118.97g

Therefore :-118.97g of SO₂ can be produced.