Ask your own question, for FREE!
Chemistry 11 Online
OpenStudy (anonymous):

Regarding an O-Chem lab and melting point

OpenStudy (anonymous):

So I had a lab where I separated caffeine from tea with methylene chloride. The caffeine I was left with had a melting point of 225.2-226.8*C and the book said the melting point of caffeine is 237.8*C. Does that mean that I have an impure product or that I didn't get caffeine?

OpenStudy (shadowfiend):

It could mean either, honestly. What do you mean by “didn't get caffeine”? I suppose you could have ended up with the rest of the tea product. You'd have to know the melting point of the tea without the caffeine to really know whether that's what you were looking at.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
abby2blessed: How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
3 days ago 0 Replies 0 Medals
TJH: love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
4 days ago 4 Replies 3 Medals
Puffer: General question what came first the chicken or the egg itu2019s a trick question
4 days ago 5 Replies 1 Medal
Twaylor: would anyone mind helping me fix this in my code
1 week ago 9 Replies 0 Medals
TJH: Thank you to staff and admin for keeping this place running
25 minutes ago 8 Replies 1 Medal
Bounty: the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
1 week ago 4 Replies 0 Medals
Bounty: can I get so tips on how to start my journey into semi-realism art also on how to
2 weeks ago 0 Replies 0 Medals
Strawberryluna: Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
5 days ago 5 Replies 2 Medals
Bounty: first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
3 weeks ago 5 Replies 1 Medal
Twaylor: 3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
3 weeks ago 5 Replies 0 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!