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Moderate

Unknown Oxide of Titanium

APCHEM-7TIS17

A student completes a lab to determine the empirical formula of an unknown oxide of titanium. 4.80 g of titanium metal is placed in an empty crucible weighing 20.01 g.

The crucible is heated until a constant mass is obtained. The mass of the crucible with the titanium oxide product is 28.01 g.

What is the empirical formula of the titanium oxide?

A

$TiO$

B

$Ti_2O$

C

$TiO_2$

D

$Ti_2O_3$