Question

how many l of oxygen (total) (at 350 degrees c and at 5.25 atm) are needed to convert 5.00 g of s to so3? s (solid) o2 (gas) --> so2 (gas) then 2so2 (gas) o2 (gas) --> 2so3 (gas)

Answer 1

2.19 litres of oxygen at 350 °C and at 5.25 atm are needed to convert 5.00 g of S to SO₃.

Using the equation-  S + 3/2 O₂ → SO₃

Moles of sulfur- 5/32 = 0.15 mol

Given the stoichiometry, we require $\frac{3}{2} * 0.15$ mol of dioxygen gas. = 0.225 mol.

And now we solve for volume in the Ideal Gas equation:

V = nRT /P

V= 0.225 mol x 0.0821L atm K⁻¹ x 623 K / 5.25

V= 2.19  L

Hence, 2.19 Liters of oxygen at 350 °C and at 5.25 atm are needed to convert 5.00 g of S to SO₃.

To learn more about Ideal gas equation refer- https://brainly.com/question/24236411

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