Ilmenite (FeTiO₃) is the primary ore from which the element titanium (Ti) is isolated. What is the percentage of titanium by mass in this mineral?

Question

Quizplus · Accepted Answer

The molar mass of ilmenite (FeTiO₃) is calculated by adding the molar masses of iron (Fe, 55.85 g/mol), titanium (Ti, 47.87 g/mol), and three oxygen atoms (O, 16.00 g/mol each). This gives a total molar mass of approximately 151.71 g/mol. The mass percentage of titanium in ilmenite is then calculated as (47.87 g/mol Ti / 151.71 g/mol FeTiO₃) * 100%, which equals approximately 31.55%, rounding to the nearest whole number gives 32%.

Ilmenite (FeTiO₃) Is the Primary Ore from Which the Element