Problem+Set+5

Here is the ProblemSet #5 file. The online due day is 07-08-2010. Please download it, answer the questions assigned to your LG (LG-WX, LG from Worcester; LG-MX, LG from Manchester), and upload your answer file back accordingly (below). If you have any problems to upload your file back, please send your file directly to me at jonathan.sheng@mcphs.edu and l will do it for you. Each question will be answered by two LGs independently.

Question A. LG-W29: Specific Rotation, [ a ] = [ a observed]/(c x l) [ a observed] = 1.74 c = 2g/10mL = 0.2 g/mL l = 100mm = 1 dm [ a ] = 1.74/ (.2 x 1) = +8.7 degrees

LG-W30:

1.74/1(2/10)=8.7

Question B LG-W31:



LG-W32:

LG-W33:



Question C LG-M1

LG-W1



Question D LG-M2



LG-W2



Question E LG-M3 H O \ // C ׀ OH C---H ׀ OH C---H ׀ H C---OH ׀ H C---OH ׀ CH2OH

LG-W3