Question

based on the following balanced equation:
2h₂s + 3o₂ → 2so₂ + 2h₂o
how many moles of so₂ form from 9 moles of o₂?
9 moles o₂ → ? moles so₂

Explanation:

Step1: Determine mole ratio

From the balanced equation \(2H_2S + 3O_2
ightarrow2SO_2 + 2H_2O\), the mole ratio of \(O_2\) to \(SO_2\) is \(3:2\).

Step2: Set up proportion

Let \(x\) be the moles of \(SO_2\). Using the ratio \(\frac{3\space mol\space O_2}{2\space mol\space SO_2}=\frac{9\space mol\space O_2}{x}\).
Cross - multiply: \(3x = 2\times9\).

Step3: Solve for \(x\)

\(3x=18\), then \(x=\frac{18}{3}=6\).

Answer:

\(6\)