107 Preparing for the Practical

107 Preparing for the Practical -...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Preparing for the Qualitative Exams A Further Handbook of Suggestions To Help You Study Effectively Chemistry 107 (All Sections) Prepared by Philip R. Brown March 24, 2011
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The practical experience seems to cause great trepidation, but it is really just  another experiment.  Your unknown will be a solid containing one cation and  one anion only.  A few general “secrets” may prove useful. 1) Dissolving the solid can suggest a lot if you are observant and  thoughtful.  (See the attached table, or review it in the previous  “handbook”.) 2) Things that you don’t see happen can be as informative as  things that you do see happen, if you are mindful.  Remember,  elimination helps speed final recognition as much as positive  tests.  E.g., addition of chloride ion to a solution without a  precipitate forming eliminates the 3 cations from experiment 1  as possibilities immediately. 3) Both physical and chemical changes can have kinetic 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2011 for the course CHEM 107 taught by Professor Staff during the Winter '08 term at BYU.

Page1 / 5

107 Preparing for the Practical -...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online