237.0 mL of 1.9 M NaOH & 237.0 mL of 1.9 M HCl are mixed. solutions were at 22.8°C. final temp is 35.5°C. all the solutions have a D of 1.0 g/cm3 and specific heat capacity of 4.18 J·°C−1·g−1, find the enthalpy change (in kJ/mol) for the neutralization of HCl by NaOH.?
[ Chemistry ] Open Question : I am trying to determine the formula of MgO. The balanced equation is Mg3N2 + 3H2O -> 3MgO + 2 NH3.?
If water was not added to the sample to drive off the magnesium nitride, how would the formula for magnesium oxide be different? Would Mg increase or decrease? Would O increase decrease?