-192 because .....
- delta H = [(200)(4.184)(3.76)(1/1000)]/ [(.917/56.077)]
When 0.917 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 3.76C is observed.
Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC.
(Note: Pay attention to significant figures. Do not round until the final answer.)
Hrxn, for the reaction of
CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l)
is _________ kJ/mol.
3 answers
what is the 56.077 at the last part of this question?
It's the molar mass for CaO