When a sample of Zn is added to 100 mL of 1.0M hydrochloric acid at 21.3οC, the solution temperature rises to 25.8οC. How many moles of Zn were added to the HCl
solution? (Assume the density of the solution is 1.00g/mLand the specific heat capacity
is that of water)
Zn(s) + 2 HCl(aq) ZnCl2(aq) + H2(g) ∆H = -156kJ