Chemistry Question for Stoichiometry

Question

Xenon can be made to react with fluorine gas to produce xenon tetrafluoride. If 15.90 g of xenon is used, what mass of fluorine, in g, is needed to react completely with the xenon?

Answer 1

Write the correctly balanced equation:

Xe + 2F₂ ==> XeF₄

Now, using the stoichiometry of this balanced equation, along with dimensional analysis, we solve the problem as follows:

15.90 g Xe x 1 mol Xe/131.3 g x 2 mol F₂/mol Xe x 38.00 g F₂/mol F₂ = 9.203 g F₂ needed