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Metal + HCl Reaction and Metal Oxide + HCl Reaction consist of experimental data, data analysis,
Typology: Lab Reports
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Name: Date: Lab Partner: Lab Section:
Metal + HCl Reaction
Experimental Data
Assigned Metal: Trial 1 Trial 2 Mass of dry, empty calorimeter Mass of calorimeter plus HCl Mass of HCl used Mass of dry, empty beaker Mass of beaker plus metal Mass of metal used Initial (equilibrium) temperature of HCl Final (maximum) temperature of mixture
Data Analysis
Write the balanced equation for the reaction between your assigned metal and HCl. All balancing coefficients should be whole numbers.
Complete the table below with the results of your calculations. Trial 1 Trial 2 Total mass of mixture, m
SHC of mixture, c (use SHC of water) Heat absorbed by mixture, in J Heat released by reaction, in J
Enthalpy of Combustion of a Metal
Write the balanced equation for the combustion of your assigned metal. All balancing coefficients should be whole numbers.
Using Hess’s Law, determine the enthalpy of combustion of your assigned metal as balanced above. To do this, you will need the balanced thermochemical equations for the two reactions studied in this lab, plus the balanced thermochemical equation for the formation of water from its elements. Clearly show how these three equations (and their reaction enthalpies) must be combined to give the target combustion reaction.
Calculate the theoretical value for the enthalpy of combustion of your assigned metal, using