Using Calorimeter Techniques to Indirectly Determine An Enthalpy Change Using Hess Law

Authors Avatar

Name: Vo Ngoc Kieu Duyen – Cher

Date : April 5th 2011

IB Chemistry HL

Mr. Brendt Bly

Internal Assessment:

Title: Using Calorimeter Techniques to Indirectly Determine An Enthalpy Change Using Hess’ Law

Aim: Determine an enthalpy change using Hess’ Law and calorimeter techniques.

Procedure: IB Chemistry Investigations – Volume 1 – Core.

Data Collection and Processing:

Table 1: The volume of 2 mol dm-3 hydrochloric acid and mass of sodium hydrogen carbonate and mass of weighing bottle & sodium hydrogen carbonate when measuring.

Join now!

 

Table 2: The temperature change during the reaction of Hydrochloric acid and Sodium hydrogen Carbonate

 Graph 1: The temperature change during the reaction of Hydrochloric acid and Sodium Hydrogen Carbonate

Table 3: The volume of HCL, the mass of weighing bottle & Na2CO3 and mass of Na2CO3 added

 

Table 4: The temperature change during the reaction of Hydrochloric acid (HCL) and Sodium Carbonate (Na2CO3)

Graph 2: The temperature change during the reaction of Hydrochloric acid (HCL) and Sodium Carbonate (Na2CO3)

Calculations:

Part 1: HCl + NaHCO3 reaction

Change in temperature (ΔT):

...

This is a preview of the whole essay