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-   -   LCMS Assembly of Cholesterol (http://www.physicsforums.com/showthread.php?t=580443)

 cdoss Feb22-12 10:56 PM

LCMS Assembly of Cholesterol

1. The problem statement, all variables and given/known data
Our assignment was to determine the structure, or sub-structure of our mass observed in the LCMS result. The number we got was 369.3. I am not really sure what to do with this at all. She gave us the structure of cholesterol, but I'm not sure where to add things on...

 chemisttree Feb23-12 01:59 AM

Re: LCMS Assembly of Cholesterol

Quote:
 Quote by cdoss (Post 3779238) 1. The problem statement, all variables and given/known data Our assignment was to determine the structure, or sub-structure of our mass observed in the LCMS result. The number we got was 369.3. I am not really sure what to do with this at all. She gave us the structure of cholesterol, but I'm not sure where to add things on...
Add things on? Molecular mass of cholesterol is ... what?

 cdoss Feb24-12 12:37 AM

Re: LCMS Assembly of Cholesterol

387.3. I think I actually understand it now. because the LCMS will show the mass +1 and then the bond with water was broken, which caused the weight to be 18 less than what we expected.?

 angga333 Feb24-12 10:10 AM

Re: LCMS Assembly of Cholesterol

Quote:
 Quote by cdoss (Post 3781395) 387.3. I think I actually understand it now. because the LCMS will show the mass +1 and then the bond with water was broken, which caused the weight to be 18 less than what we expected.?
yeah,,, agree,,,!!:cool::cool::cool::cool::cool::cool::cool:

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