8.99 math
Posted: Tue Feb 06, 2018 2:54 pm
Hydrochloric acid oxidizes zinc metal in a reaction that produces hydrogen gas and chloride ions. Apiece of zinc metal of mass 8.5 g is dropped into an apparatus containing 800 mL of 0.500 M HCL(aq). If the initial temperature of the hydrochloric acid solution is 25*C, what is the final temperature of this solution? Assume that the density and molar heat capacity of the hydrochloric acid solution are the same as those of water and that all the heat is used to raise the temperature of the solution.
The solutions manual find the enthalpy of the reaction first (-20000 J) and sets it equal to (-4.184)(800 g)(dT)
I was wondering where the 800 g came from because it says that the zinc is 8.5 g and the HCl is .130 mol
The solutions manual find the enthalpy of the reaction first (-20000 J) and sets it equal to (-4.184)(800 g)(dT)
I was wondering where the 800 g came from because it says that the zinc is 8.5 g and the HCl is .130 mol