Answer to Question #72292 in Inorganic Chemistry for Lina Delany

Question

What is the enthalpy change of this reaction in kJ/mol?
NaOH (aq) + HCl (aq) --> NaCl (aq) + H2O (l)
50 cm3 of HCl acid was mixed with 50 cm3 of sodium hydroxide solution. Each solution contained 0.01 mol solute. The temp rise was 12 degrees Celsius. Assume the density of all solutions is 1.0 g/cm3. And use energy transferred (J) = mass of solution * 4.2 * change in temperature