5. When one mole of calcium carbonate reacts with ammonia, solid calcium cyanamide, CaCN2, and liquid water are formed. The reaction absorbs 90.1 KJ of heat.
a. Write a balanced thermochemical equation for the reaction.
b. Using Table 8.3, calculate ∆Hof for calcium cyanamide.
When 1 mole of calcium carbonate reacts with ammonia to form calcium cyanamide and liquid water 90.1 kJ of heat is absorbed.
The thermochemical equation for the reaction is as follows: