Stoichiometry and Percent Yield Problem

timer Asked: Jan 24th, 2016

Question description

A certain mining company is needing to determine the best place for a new mine for Titanium extraction. They determine the %TiO2 present in all the ore using the following reaction by analyzing for the amount of bromine generated.

3TiO2 (s) + 4BrF3 (l) --> 3TiF4 (s) + 2Br2 (l) + O2 (g) 

If a 25.0 g sample of ore creates 4.85 g of Br2, what is the percent yield for TiO2 in the ore?


I know I need to use stoichiometry to figure out how much TiO2 there is in grams, but what I'm confused about is what the problem means by "ore." Does that refer to just TiO2, or TiO2 AND BrF3? How would I be able to find individually how much TiO2 I have, so I can use a percent yield equation?

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