Europa Astronaut asked 1/24/2016 A mining company finds %TiO2 present in titanium ore, looking for the amount of bromine generated. 3TiO2 + 4BrF3 = 3TiF4 + 2Br2 + O2. If a 25.0 g sample of ore creates 4.85 g of Br2, what's the percent yield for TiO2 in the ore?