Acid-base Titrations Flashcards
What equation is used to find the concentration of a solution
n = cv divided by 1000
What is the equation to calculate dilution
Dilution = concentration of original solution divided by concentration of diluted solution
How to you calculate the volume of original solution needed
Volume of original needed = total volume of diluted solution divided by dilution
What is dilution factor
The amount the original solution is divided by
What are the main pieces of apparatus used in a titration?
Burette, pipette with safety filler, volumetric flask, conical flasks.
What is the first step in preparing a burette for use?
Rinse the burette with deionized/distilled water.
What is the second step in preparing a burette for use?
Rinse the burette with the solution you will be filling it with.
What is the final step in preparing a burette for use?
Fill the burette with the solution you will be using, ensuring that the jet is filled. Ensure there are no bubbles
When using a burette, how is the volume of solution read?
At the bottom of the meniscus.
What is the first step in preparing a pipette for use in a titration?
Using a pipette filler, rinse the pipette using deionised water.
What should you do after rinsing the pipette with the solution you will be filling it with?
Draw the solution up to the line on the pipette.
What is the procedure for releasing the solution from the pipette?
Release the solution into a conical flask.
What should you do with the tip of the pipette after releasing the solution?
Touch the tip of the pipette onto the surface of the liquid. Ensure there are no bubbles
Fill in the blank: A _______ is used to fill a pipette.
pipette filler.
True or False: It is acceptable for bubbles to form in the pipette tip.
False.
What is the first step in carrying out a dilution of a solution?
Pipette 25.0 cm³ of the original solution into a clean volumetric flask
What should you add to the volumetric flask after the original solution?
Add distilled water until the water is just below the line
How should deionised water be added to the flask during dilution?
Using a disposable pipette, add deionised water very slowly until the bottom of the meniscus is on the line
What is the final step after adding deionised water in the dilution process?
Stopper the flask and invert to mix thoroughly
Inverting the flask ensures a homogenous solution.
What is the first step when preparing a solution from a mass of solid?
Place beaker on a balance and tare the balance
What should be added to the beaker after taring the balance?
Add about 50 cm³ of distilled water to the beaker and stir using a glass rod
What should you do with the solution in the beaker after stirring?
Pour the solution, with washings, into a volumetric flask
What is the next step after pouring the solution into the volumetric flask?
Add distilled water until the bottom of the meniscus is on the line
What should you do after adding distilled water to the volumetric flask?
Stopper the flask and invert several times to mix thoroughly
Mixing ensures that the solid is fully dissolved and the solution is homogenous.
