Core Practical 03 - Titration Flashcards
What is a standard solution?
A standard solution is a solution of known concentration.
How do you make a diluted solution of hydrochloric acid?
Add 25 cm3 of the hydrochloric acid solution into the volumetric flask and make the solution up to the line by adding distilled water.
What equipment is used to carry out a titration?
A pipette and pipette filler are used to accurately measure out the volume of a reactant before transferring it to a burette.
How do you carry out this titration?
Fill the burette with NaOH and place it into the conical flask containing the solution of HCl.
Why are acid-base indicators used?
To detect when a reaction reaches completion, usually by the presence of a colour change.
What are concordant results?
Titres that are within 0.1 cm of each other.
How would you analyse the results from this titration?
Calculate the mean titre using concordant results and the number of moles of NaOH in the mean.
What are some potential hazards and risks in the laboratory?
Potential hazards and risks include exposure to corrosive substances, spills, and improper handling of equipment.
