Homework Help: chemistry 101

Posted by ABCD on Saturday, July 9, 2011 at 10:17pm.

given the reaction: 2mg + o2-----> 2mgo . when 4.32g of oxygen react with magnesium 327kj of energy is produced. the heat of reaction for 1 mole of oxygen is???

chemistry 101 - bobpursley, Saturday, July 9, 2011 at 10:37pm
how many moles is 4.32 of MgO?

take that number, call it NUMBER.

heat of energy = 327kjoules/NUMBER

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