Used for transferring small amounts of liquid without measuring. Some pasteur pipettes come with a scale but they are very roughly used. A burette, on the other hand, looks like a graduated cylinder with a stopcock at the bottom. The control of flow is what allows burettes to be used in titrations.
Keeping this in view, how do you read the Buret?
Assume that the burette is filled to the point indicated in the figure at the left. You would record the initial point as 3.30 ml; the ending point would be 3.90 ml. Therefore, the titration would have required 0.60 ml. Remember that you should read the number that is at the bottom of the meniscus.
Why would you use a burette instead of a graduated cylinder?
a) Burets can be held by the hand during a titration while graduated cylinders must be clamped to a ringstand. b) Graduated cylinders cannot measure liquids to the same degree of accuracy as a buret. d) Burets typically hold more liquid than a graduated cylinder.
What goes into the burette?
In the book they added 25 cm3 of standard solution (known concentration), sodium carbonate, into the pipette then the conical flask, not the burette. They put the hydrochloric acid of unknown concentration into the burette. It actually doesn't really matter which you put in the burette and which in the flask.