sssssaaaaaddddd4235 sssssaaaaaddddd4235 17-05-2023 Chemistry contestada When 2.50 g Na reacted with excess Br2, 9.82 g of NaBr was obtained. What was the percent yield? 2Na + Br2 ® 2NaBr Molar Mass, g*mol-1 NaBr 102.89 76.6% 98.8% 65.5% 87.7%