Chemistry Homework Solutions

electrophoreis w/ arginine, alanine, & aspartic acid-what happens

Describe what would happen if you conducted an electrophoresis of a mixture of arginine, alanine, and aspartic acid, using a buffer with pH of 7.0. Should you place the mixture of amino acids at one end of the starch gel or in the middle? A diagram may help. **I know that smaller peptides migrate fastest so Alanine, asparti ...continues

reactions - stearic acid + sodium hydroxide yields ...

Complete the reactions stearic acid + sodium hydroxide yields ? C-C-N-H +HCl yields ? H H2 CH3CH2(CH=CHCH2)5COOH yields ? Pt O = C-O-C-(CH2)12CH3 - O = ...continues

Physical Properties

Lower solubility in water: Glucose or stearic acid Lower pH in solution: Butanoic acid or 1,5-butanedioic acid Higher melting point: Trans-CH3(CH2)5CH=CH(CH2)7COOH or Cis-(same compund) **Please briefly explain why so I can understand and be apply to apply in future

how conditions alter rate of enzyme-catalyzed reaction

How will each of the following changes in condition alter the rate of an enzyme-catalyzed reaction: -decreasing temp to 10 deg C? -increasing the pH of the solution from 7 to 11? -heating only the enzyme to 100 deg C?

structural difference btwn amylose/cellulose & glycogen/cellulose

Describe the principal structural difference between amylose and cellulose and then between glycogen and cellulose.

Glucsoe-drawing diff forms/enantiomer/diastereomer/chiral C

I just need some hints on how to get started on these questions ... Using glucose: a. Draw the two cyclic forms and label as alpha or beta b. Draw the open ring (straight chain) form and label. Use Fischer projection and label as either D or L c. Draw the enantiomer of (b) and label it using D or L designations d. Draw ...continues

momsaccharides/products, linkage, benedicts, acetal etc

Please see attached for diagram ... Questions: Will this disaccharide give a positive Benedict's test? Why or why not? Does this structure have a hemiacetal, hemiketal, acetal, or ketal system? Locate it on the drawing & give appropriate label. Upon hydrolysis with the appropriate enzyme, what will be the products? ...continues

lipitor, bile salts, cholesterol/role w/ protein, blocks LDL-explain

For lipitor, bile salt, and cholesterol and with knowledge of intermolecular forces, expalin the following: a. which of the three will dissolve in blood and why? b. LDL (bad cholsterol) stands for Low Density Lipoprotein - that is- chlosterol (lipid) surrounded by protein. HDL (good cholosterol) stands for High Density Lip ...continues

Naming

Please see attached structuers and name them (I'm new to drawing in Word. Get ready for a good laugh.)

same compound or isomer or different etc

Please see attached (attempted) drawings. Thanks. Problem: For each of the (attached) compounds, identify them as 1) the same or 2) constitutional isomers or 3) geometric isomers or 4) enantiomers or 5) different compounds that are not isomers

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