User:Samiye Yaman/Notebook/Lab 581/2012/08/29: Difference between revisions
From OpenWetWare
Samiye Yaman (talk | contribs) |
Samiye Yaman (talk | contribs) (→Data) |
||
Line 31: | Line 31: | ||
==Data== | ==Data== | ||
* | |||
*Films with higher molecular mass(100,000) were thicker than the films with smaller molecular mass(22,000). | |||
*It was very hard to fully dissolve the PVOH with higher molecular mass. | |||
==Notes== | ==Notes== |
Revision as of 07:43, 3 October 2012
Experimental Chemistry | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
ObjectiveDescriptionSynthesizing PVOH
-0.5 g of polvinyl alcohol (MW:22000) was placed in to beaker 1. 3 ml of water was added to the beaker. -1 g of PVOH (MW:22000) was placed in to beaker 2. 6 ml of water was added to the beaker. -0.5 g of PVOH (MW:100000) was placed in to beaker 3. 5 ml of water was added to the beaker. -1g of PVOH (MW:100000) was placed. in to beaker 4. 7 ml of water was added to the beaker. -All four beakers were placed on to the hot plate for 15 minutes until the solutions become clear. -Each solution was then poured in to separate teflon plates and let it dry under the hood. Note: The PVOH in beaker 2 3 and 4 did not fully dissolved. Some stayed at the bottom of the beaker. Data
NotesThis area is for any observations or conclusions that you would like to note.
|