Ask questions about projects relating to: computer science or pure mathematics (such as probability, statistics, geometry, etc...).

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Postby [lexi] » Tue Nov 20, 2012 9:25 am

I did the experiment, turn milk into plastic. When doing the average yield, are you to just add and divide, or are you to do a chemistry equation and come up with the theoretical yield, so you can get a percent yield. I don't know if I am over thinking or making this bigger than what is asked. Please help!
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Joined: Mon Nov 19, 2012 7:42 am
Occupation: student: 7th grade
Project Question: turn milk into plastic
Project Due Date: dec. 6th
Project Status: I am finished with my experiment and analyzing the data

Re: chemistry

Postby k4gfwgerry » Wed Nov 21, 2012 2:21 pm

Hi Lexi -
In my opinion the empirical yield is more important that attempting to determine the theoretical yield. On the web site: ... stic.shtml, under the sub heading "For Further Exploration", it is suggested that you can determine the empirical yield by varying the amount of vinegar used to convert the milk into casein plastic. It also suggests that you should try using other acidic liquids to see how much plastic they can produce from the milk.
However, you might want to consult your teacher if this is what they are expecting.
I hope this helps. Good luck with your project.
Gerry Gruenbaum
Science Buddies "Ask an Expert" Volunteer
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Joined: Wed Jul 06, 2011 12:35 pm
Occupation: Retired Electronics Engineer from Motorola Solutions
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