Ice Calorimeter Determination Of Reaction Enthalpy Lab Report
D. F. Nachman
Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy
9/11/2014
Introduction: A chemical reaction often indicated by a transfer of energy measured in heat. By measuring this heat transfer in a constant pressurized environment, the enthalpy of the reaction can be used to infer certain information about a specific reactions reactants and products. The transfer of heat from outside sources in would be described as an endothermic reaction. Contrary, when a reaction releases heat out to its surroundings it is described as an exothermic reaction.
Method:
Small strips of Magnesium (0.2480g) were added into a precise measurement of 5mL of 1M Sulfuric Acid (measured with a transfer pipet) within …show more content…
This leaves a 17.6% error with the theoretical value -466.9KJ/mol.
Discussion:
The experiment yielded an exothermic reaction. The calculated enthalpy was far less than the theoretical. The cause of this is a lower heat transfer than the theoretical transfer. This can be caused by heat loss from the calorimeter outwards or not letting the reaction to fully take place.
References:
Brown, LeMay, Bursten, General Chemistry, 10th ed., Houghton Mifflin, Boston, 2006
Thermochemistry lab document, Figure 1. Ice calorimeter apparatus, Mesa Community College CHM152LL website, www.physci.mc.maricopa.edu/Chemistry/CHM152, accessed
Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy
9/11/2014
Introduction: A chemical reaction often indicated by a transfer of energy measured in heat. By measuring this heat transfer in a constant pressurized environment, the enthalpy of the reaction can be used to infer certain information about a specific reactions reactants and products. The transfer of heat from outside sources in would be described as an endothermic reaction. Contrary, when a reaction releases heat out to its surroundings it is described as an exothermic reaction.
Method:
Small strips of Magnesium (0.2480g) were added into a precise measurement of 5mL of 1M Sulfuric Acid (measured with a transfer pipet) within …show more content…
This leaves a 17.6% error with the theoretical value -466.9KJ/mol.
Discussion:
The experiment yielded an exothermic reaction. The calculated enthalpy was far less than the theoretical. The cause of this is a lower heat transfer than the theoretical transfer. This can be caused by heat loss from the calorimeter outwards or not letting the reaction to fully take place.
References:
Brown, LeMay, Bursten, General Chemistry, 10th ed., Houghton Mifflin, Boston, 2006
Thermochemistry lab document, Figure 1. Ice calorimeter apparatus, Mesa Community College CHM152LL website, www.physci.mc.maricopa.edu/Chemistry/CHM152, accessed