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C3 Titration
Edexcel C3 Titration and Calculations
Question | Answer |
---|---|
What solution goes in the burette? | A solution of KNOWN concentration |
What do you use to measure accurately 25cm3? | A pipette |
Describe the titration procedure | Fill the burette; pipette25cm3 of UNKNOWN into conical flask; add indicator in flask; open tap; slow down near the end-point; record volume in burette; repeat until concordant results |
What is the end-point? | The volume for which there is a colour change in the flask |
What is the number of moles in a beaker containing 25cm3 of a 0.2mole.dm-3 solution? | |
What is the volume of 0.025moles of a 0.1mole.dm-3 solution? | |
What is the concentration of a solution of 0.2moles in 20cm3? |