Homework Help: chemistry

Posted by matt on Friday, November 7, 2008 at 6:15pm.

Calculate the heat of formation of SiO4(s), given that the heats of formation of SiO2(s), -910.90 KJ/mol; H2O(l), -285.8 KJ/mol; HF (g), -271.1 KJ/mol.

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