How Many Molecules of H₂S Are Required to Form 79

question 116

Multiple Choice

How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO₂. 2 H₂S(g) + SO₂(g) → 3 S(s) + 2 H₂O(l)

• A) 1.48 × 10²⁴ molecules H₂S
• B) 9.89 × 10²³ molecules H₂S
• C) 5.06 × 10²⁵ molecules H₂S
• D) 3.17 × 10²⁵ molecules H₂S
• E) 2.44 × 10²³ molecules H₂S