Posted by **kathryn** on Thursday, September 30, 2010 at 8:56pm.

Hello, I am looking just for someone to tell me how I go about doing this problem, ie. the formula that i would need to know for it. I would really like to figure it out on my own but I'm not sure how to.

The mass ratio of Kr to F in a particular compound is 2.206:1. How many grams of krypton are present if the compound contains 57.8 grams of F?

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