Question Detail
Question
How many grams are in 3.4 moles of iodine gas? I = (126.9 g/mol)
Correct Answer
Option B is the correct answer.
Detailed Explanation
Iodine gas is diatomic: I₂. Molar mass I₂ = 2 × 126.9 = 253.8 g/mol. Mass = 3.4 mol × 253.8 g/mol = 862.92 g.
Hint
Remember that elemental iodine exists as I₂ molecules.