AP Chemistry
1.3 Elemental Composition of Pure Substances
A student heats a sample of pure titanium metal, \(\text{Ti}\), in a crucible with excess oxygen until the metal is completely converted to titanium oxide. The student records the mass measurements in the table below.
Based on the data in the table, what is the empirical formula of the titanium oxide?
| Measurement | Mass (g) |
|---|---|
| Mass of empty crucible and lid | 15.00 |
| Mass of crucible, lid, and \(\text{Ti}\) sample | 17.40 |
| Mass of crucible, lid, and titanium oxide | 19.00 |
Based on the data in the table, what is the empirical formula of the titanium oxide?
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