What Sub-Structure Does a 369.3 Mass Indicate in Cholesterol LCMS Analysis?

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Homework Statement


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...
 

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cdoss said:

Homework Statement


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?
 
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.?
 
cdoss said:
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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