Chlorine was passed over 1.06 g of heated titanium,and 3.40 g of a chloride-containing compound of titanium was obtained.What is the empirical formula of the obtained compound?

Question

Quizplus · Accepted Answer

The balanced chemical equation for the reaction is:
Ti + 2 Cl2 → TiCl4
Using stoichiometry, the theoretical yield of TiCl4 is calculated as:
1.06 g Ti × (1 mol Ti/47.87 g Ti) × (1 mol TiCl4/1 mol Ti) × (169.9 g TiCl4/mol TiCl4) = 3.57 g TiCl4 (rounded to two significant figures)
Since the actual yield is 3.40 g, the percent yield is:
(3.40 g TiCl4 / 3.57 g TiCl4) × 100% = 95.2%
The empirical formula of TiCl4 is TiCl4, but since the question asks for the empirical formula of the obtained compound, the subscripts can be divided by the greatest common factor of 4, which is 4 itself, to give the empirical formula of TiCl. Therefore, the answer is D.

Chlorine Was Passed Over 1