Chemistry 155 Introduction to Instrumental Analytical Chemistry
Chemistry 155 Introduction to Instrumental Analytical Chemistry
Chemistry 155 Introduction to Instrumental Analytical Chemistry
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Chem <strong>155</strong> Unit 1 Page 39 of 3131.10.4 How <strong>to</strong> make primary s<strong>to</strong>ck solution:1. Weigh out the desired quantity of pure (e.g. dry,or oxide-free) analyte material.2. Dissolve this amount quantitatively, i.e. withoutany loss, in the desired solvent.3. Transfer this liquid quantitatively in<strong>to</strong> thedesired volumetric flask.4. Dilute <strong>to</strong> volume with the desired solvent – thisprocess is important! It is often poor practice <strong>to</strong>add 5 mL of ‘a’ <strong>to</strong> 5 mL of ‘b’ and anticipate thatthe final volume will be exactly 10 mL!Remember the words DILUTE TO VOLUME!Page 39 of 313
Change language