Answer:
The heat evolved by 5.00g of H2O2(l) is -14.41 KJ. We have the equation of the reaction as follows;
2H2O2 (l) ------ 2H2O(l) + O2(g) ΔH = -196KJ.
Number of moles of H2O = 5.00g/34 g/mol = 0.147 moles. From the information we have in the question;
2 moles of water yields -196KJ. ...
= -14.41 KJ.
07-Aug-2016