11. Calcula n AL V. Specific Heat Capacity of an unknown Metai 1. Volume of wate

Question

11. Calcula n AL V. Specific Heat Capacity of an unknown Metai 1. Volume of water mL. 2. Calculate the mass of water 3. Mass of unknown metal 4. Initial temperature of water in calorimeter, Ti 5. Initial temperature of metal before placing in calorimeter, T 6. Final temperature of the water, Tr 7. Final temperature of the metal, T 8. Calculate the specific heat capacity of the metal 4711.20 3 47 20 3 J/g °C 9. Calculate the heat capacity of the unknown metal /40.4 -c 10. Based on your calculated specific heat capacity, what unknown metal is the washer most likely made of? The wo likely made of Ma based on results. 11. what is the percent error between your calculated specific heat capacity and the specific heat capacity of the metal you identified above reported in the literature? What are some of the possible sources of error in this experiment. od bs error

Explanation / Answer

Heat gained by metal= heat lost by water

83.09*Cp*(98.6-41.9)=100*4.184*(41.9-22.9)

Cp =specific heat of metal= 100*4.184*(41.9-22.9)/ (83.09*(98.6-41.9)= 1.776 j/g/deg.c

Based on the heat capacity of metalsm, Berylium is the metal whose Cp =1.83 ( from literature)

% Error= 100* (1.83-1.76)/1.83 =3.83%

Heat capacity of metal = 83.09* cP = 83.09*1.776= 147.6 J/deg.c

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