RP1

Question 1

What is the aim for RP1 part a?

Answer 1

Making a volumetric / standard solution and carrying out a simple acid-base titration.

Question 2

Describe how to prepare 250cm3 of an aqueous standard solution of ethanedioic acid containing an accurately measured mass of the acid.

Answer 2

1. Accurately weight out a dry sample of ethanedioic acid in a weighing boat using a balance that can read to at least 2 decimal places.
2. Transfer the sample to a beaker and reweight the weighing boat to find out the mass that was transferred since not all of it would be.
3. Dissolve the acid with some distilled water and stir using a glass rod to ensure everything is dissolved.
4. Transfer the sample to a volumetric flask and rinse all the equiptment used