Write up the lab
Method – Use the past tense. You should include the names of the apparatus that you used: Burette, volumetric pipette (25.0 cm3), burette, phenolphthalein indicator solution etc
Results- Use a clear table with units and uncertainties
Calculations- Show the step by step calculations in order to calculate the concentration of the unknown
Remember the step by step guide:
Step1. Write a balanced equation
Step2. Calculate the number of moles in the solution with a known concentration (the standard solution)
Step3. Deduce from the ratio in the equation the number of moles in the solution with unknown concentration. The sulphuric acid in this case
Step4. Calculate the concentration of the unknown
Step5. Remember that the solution of unknown concentration was diluted by a factor of four. Therefore, you need to multiply by four to get the concentration of the original acid solution
Evaluation
You need to list the sources of error and evaluate each one in terms of how it could have affected your result
You need to suggest realistic improvements that relate to the weaknesses that you have identified
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