IB Chemistry - Internal Assessment Lab Format
Volume of Hydrogen produced by Hydrochloric acid reacting with Magnesium.
Name: Tara Nelly
Experimental Report –
Modifications to original design: No modifications were carried out.
Data Collection and Processing
Photograph or Diagram of Lab Setup
Qualitative Observations –
• Vapor was seen traveling up the tube into the measuring cylinder.
• Bubbles occurred in the flask as the magnesium reacted with the acid.
• The bottom of the flask became warm.
Table 1: Volume of hydrogen (H2) produced by different masses of Magnesium (H2O2)
|Mass of Magnesium +/- 0.001g |% Uncertainty in mass |Volume of H2 +/- 0.5 ml |% Uncertainty in volume |
|0.021 |5 |14.9 |3 |
|0.039 |3 |36.1 |1 |
|0.062 |2 |59.2 |0.8 |
|0.078 |1 |82.6 |0.6 |
|0.103 |0.9 |107.1 |0.5 |
As the mass of magnesium used increased the volume of hydrogen gas produced also increased
Overview – To investigate the relationship between the volume of oxygen produced and the mass of hydrogen peroxide used a scatter graph will be drawn using excel and a “line of best” fit used to determine any trend that may exist.
The gradient from this graph will be used...