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posted by Ana on Sunday, February 28, 2010 at 8:48pm.

How many molecules of BrF2 form when 384g Br2 react with excess F2? equation: Br2 + 5F2 ---> 2BrF5 I really just need the guidelines to figure out the problem, i can figure out the rest from there. Please and thank you.

You must mean BrF5. Convert 384 g Br2 to moles. Using the coefficients in the balanced equation convert moles Br2 to moles BrF5. Then 1 mol contains 6.02 x 10^23 molecules.

That's what I meant, thank you for you help DrBob222

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