50.0 mL of 0.500 M NaOH is placed in a coffee-cup calorimeter at 25.00 oC and 25.0 mL of 0.500 M HCl is carefully added, also at 25.00oC. After stirring, the final temperature is 27.21oC. Calculate qsoln (in J) and the change in enthalpy, ΔH, (in kJ/mol of H2O formed). Assume that the total volume is the sum of the individual volumes, that d= 1.00 g/mL and c = 4.184 J/g∙K

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