mass water x specific heat water x delta T gives you q.
q/0.945 gives J/g. Multiply by atomic mass to gt J/mol and divide by 1000 to convert to kJ/mol. I wonder about the problem, however. Since this is an aqueous solution, I wonder how the temperature can go to over 100 C. IF it does (forming steam and the steam is heated the remainder of the way, then the above formula will not give the correct answer).
When 0.945 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 387C 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)
2 answers
can you plug in the numbers cuz i keep getting it wrong
1 answer