Homework Help: chem

Posted by chemistry on Monday, December 13, 2010 at 1:25pm.

A molecular compound is composed of 58.8% Xe, 7.2% O, and 34.0% F, by mass. If the molecular weight is 223 g/mol, what is the molecular formula? Draw the correct Lewis structure. Predict the molecular geometry using the VSEPR model.

chem - DrBob222, Monday, December 13, 2010 at 2:21pm
See your other post. Take a 100 g sample which will give you the following:
58.8 g Xe
7.2 g O
34.0 g F

Convert grams to moles and find the empirical formula using the same process in your previous post.
chem - DrBob222, Monday, December 13, 2010 at 2:34pm
http://www.kentchemistry.com/links/bonding/LewisDotTutorials/XeOF4.htm

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