Results

3.1 Corrosion Rate (milli inch per year-mpy)**
*All results are estimated to 2 decimal places
*The experiment was carried out thrice before the final calculations were made (Logbook)

Molarity 1
Molarity 2
Hydrochloric Acid
34.37mpy
188.06mpy
Citric Acid
19.15mpy
121.28mpy
Sulphuric Acid
765.99mpy
2258.68mpy
Table 1.1-Results of the Corrosion Rate of the 3 acids-Hydrochloric Acid, Citric Acid and Sulphuric Acid


3.2  pH value of Acids:
Citric Acid
0.667 pH
Hydrochloric Acid
0.317 pH
Sulphuric Acid
0.257pH
Table 1.2-pH values of the acids that we used

3.3 Relationship between molarity and percentage of rust:


Graph 1.1-Relationship between molarity and percentage of rust

3.4 Individual Results:
These graphs shows the difference of the Rate of Rust between the 2 Molarities



Graph 1.2-Differences of the the Rusting Rate for mol 1 and 2 for Hydrochloric Acid


Graph 1.3-Differences of the the Rusting Rate for mol 1 and 2 for Citric Acid


Graph 1.4-Differences of the the Rusting Rate for mol 1 and 2 for Sulphuric Acid

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