Homework Help: chemistry

Posted by AP Chemistry Question on Sunday, January 8, 2012 at 12:08pm.

Calculate the enthalpy of change, Delta H of rxn, for each of the reactions. record the values in the data table part 2
I calculated the heat of rxn of the HCl +NaOH------NaCl + H2O. How do i go from here to enthalpy of change

chemistry - DrBob222, Sunday, January 8, 2012 at 1:51pm
You have q. Then delta H = q/grams or q/moles depending upon the units you want for the answer.
chemistry - AP Chemistry Question, Sunday, January 8, 2012 at 3:58pm
Dr.Bob222, so, i had to use 50 mL of HCL and NaOH. (2M), so i would do Qrxn/0.1 mol
chemistry - DrBob222, Sunday, January 8, 2012 at 8:29pm
Yes, that will give you delta H in J/mol or cal/mol. Most of the time these are expressed as kJ/mol or Kcal/mol.

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