Homework Help: chemistry (molecular calculations)

Posted by Alex on Tuesday, November 13, 2012 at 10:28am.

If you had 78.2 grams of K, how much oxygen is needed to convert it all to K2O?

chemistry (molecular calculations) - Steve, Tuesday, November 13, 2012 at 10:32am
78.2g K = 2 moles
each 2 moles of K reacts with 1 mole of O.

1 mole O = 16g
chemistry (molecular calculations) - Anonymous, Thursday, April 4, 2013 at 10:18am
78

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