The following structure is sorbose CH2OH 1. Is this D or L sorbose? C= 0 2. Is this a ketose or an aldose? H-C-OH 3. Which carbon atoms will cause it to cyclize? НО-С -Н 4. Draw the boat conformation of no. 3. H-C-OH 5. Draw the chair conformation of no. 3. CH2OH 6. How many stereoisomers does sorbose have? 7. Draw all the L isomers of this sugar. 8. Group the L isomers as enantiomers and diastereomers. 9. Draw B-D-sorbofuranose. Draw B-D-sorbofuranosyl(2-1) B-D-glucopyranoside. Is this a reducing sugar? What would be the probable function of this disaccharide, structural or storage?

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A. Copper sulfate pentahydrate is often used to teach students about Beer’s Law by making a standard curve (linear regression). The bright blue color of the solution has a peak absorbance in the red range of the electromagnetic spectrum. The absorbance value is proportional to concentration. How many grams of CuSO4 5H2O to make up 250 mL of a 0.2 M stock of this solution? B. Using M1V1 = M2V2 how many mL would a student need to measure out in graduated cylinder to make up a 50 mL (V2) solution of 0.1M, 0.05 M, 0.025M 0.0125M solutions for a standard curve at the peak wavelenth for this compound?

Calculate e° values for the galvanic cells based on the following overall reactions. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.