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First hand investi

Year 12

QuestionAnswer
Aim of this experiment To determine the standard potentials of 4 unknown metals (X,Y,Z) in reference to a copper electrode.
Write a risk assessment for the experiment When placing the electrode in the beaker of solution, splashes may occur. Some chemicals are corrosive and can cause serious chemical burns to the eye. Make sure safety glasses are worn at all times to avoid this incident
Write a method for the experiment see notes
Draw the appropriate tables for the results to be placed in see notes
Draw a diagram of the setting of the apparatus make sure you label this clearly see notes
What is a factor relating to accuracy in an experiement? the precision of the measuring apparatus
What is a factor relating to reliabilty in an experiment repeating the experiment and making sure that all the repeated results are consistent
What are two factors that relate to validity in an experiment testing what you say that you are testing all the variables are kept constant
Write a way to improve the reliabilty of this particular experiment Reliability can be improved by repeating the experiment 4 times with each metal (X,Y,Z) with the experiementer making sure that the results are similar from each previous result. This ensures that the information recorded is trustworthy.
Created by: sallyzhu
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