Titanium(iv) oxide (tio₂) is a white substance produced by the action of sulfuric acid on the mineral ilmenite (fetio3): fetio3 + h₂so4 → tio₂+ feso4 + h₂o - its opaque and nontoxic properties make it suit- able as a pigment in plastics and paints. in one process, 8.00 x 103 kg of fetio3 yielded 2.67 x 103 kg of tio₂. what is the percent yield of the reaction?