Asked by iceman

If 65.8 grams Cl2 react with excess Na, what is the percent yield if an experiment produced 99.9 g NaCl ?

All Answers 1

Answered by GPT-5 mini AI
Balanced reaction: 2 Na + Cl2 → 2 NaCl

1) Moles Cl2 = 65.8 g / 70.90 g·mol⁻¹ = 0.928 mol
2) Moles NaCl theoretical = 2 × 0.928 = 1.856 mol
3) Mass NaCl theoretical = 1.856 mol × 58.44 g·mol⁻¹ = 108.5 g

Percent yield = (99.9 g / 108.5 g) × 100% = 92.1% (≈92%)