Make up a volumetric flask and carry out a simple acid-base titration

Question 1

How is the solid weighed?

Answer 1

place the weighing boat on the pan of a diital balnce, place into the boat approxmitely the mass of sodium hydrogensulfate needed to make the solution of a particular concentration

record its precise mass

Question 2

What is done with the solid after being weighed?

Answer 2

emptied into a beaker and then re-weigh the boat, which may still contain traces

calc. the mass of the solid that has been transferrd

Question 3

What is added to the beaker?

Answer 3

add an appropriate amount of deoionised water

Question 4

What is the beaker emptied into?

Answer 4

a volumetric flask using a funnel

then using a wash bottle rinse the beaker and funnel into the same volumetric flask

rinse the glass rod in these washings

make the volumetric flask up to the graduated mark

Question 5

What is done to the volumetric flask?

Answer 5

put a stopper in it and mix the contents of the flask

Question 6

What is the final step?

Answer 6

record the conc. in mol dm^-3 of your solution to an appropriate precision

Question 7

TITRATION - what should be done to prepare the pipette?

Answer 7

rinse with deionised water

Question 8

TITRATION - How is the solution added?

Answer 8

using a pipette and a pipette filler

Question 9

TITRATION - how is the titration carried out?

Answer 9

add slowly

swirl

add dropwise near the end point

record rough and then 3 (at least) titres or until you get two within .1 of eachother