Question 1 if we mixed 45cm^3 of 2m naoh with 20cm^3 of 1m hcl and obtained a temperature difference of 9.4°c, what would be the heat of reaction, the enthalpy? . question 2 if we added 10cm^3 hcl of an unknown concentration to 30cm^3 of 2m naoh and obtained a temperature change of 4.5°c and then added 20cm^3 of the same unknown acid to 30cm^3 of 2m naoh and obtained a temperature change of 9.0°c, what is the concentration of the acid? use the enthalpy value from question 1