In this lab we determined the formula of the hydrate CuSO4 · nH2O.
We took 2 cm of the hydrate, weighed it, heated it to remove the water, and measured the mass of the dried salt.
With these numbers we were able to figure out the 'n' in the hydrate.
Here is a picture of us heating the hydrate to remove excess H2O,
*** If you're having trouble with the math equations for this unit, here are some helpful links that I studied from:
1. http://www.chemteam.info/Solutions/Molarity.html
2. http://www.chemteam.info/Mole/Avogadro-Number-CalcsII.html
3. http://www.chemteam.info/Mole/Empirical-MolecFormulas.html
Marie, thanks for sharing! I really liked the pictures you added. They were very helpful in showing what went on in the experiment.
ReplyDeleteGreat pictures, it really shows the chemistry involved, but you could also add the procedures used in the process or the results your group received.
ReplyDeleteThanks for sharing your experience with this experiment. Although it was brief, i was able to understand to by connecting your explanations and pictures. I wish I had seen this before the quiz, because your links would have been very helpful when I was having the same trouble I'm sure you also had with them. Thanks again.
ReplyDeleteThanks for sharing this! I agree with Holly in that you had a brief, but effective description of the lab. Loved the pictures and the links were a great help!
ReplyDelete