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Draw a schematic of the chemical structure of the Asn-Ser-Met-Glu tetrapeptide, with the corect ionization at neutral pH. Also, give an estimate the pl of this tetrapeptide (you may assume the pKa of any acidic R group is 4, the pKa of any basic R group is 11.5, and the pKa of the alpha-COOH is 2, and the alpha-NH3 is 9.5).
When 14C labeled 4-hydroxyproline was administer to rats, the 4-Hydroxyproline in newly synthesized collage was not radiolabeled
Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range.
Combustion of solid urea: CO(NH2)2 (s) + 3/2 O2 (g) --> CO2 (g) + N2 (g) + 2H2O According to bomb calorimetry measurements
an electron is confined to a linear region with a length of the same orderas the diameter of an atom (about 100 pm)
A trainee in a medical laboratory will be released to work on her own when her results agree with those of an experienced lab technician at the 95% confidence level. Following are the results from a blood urea level:
a bicycle tire is filled with air to a pressure of 100 psi at a temperature of 100 degrees C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees C. the volume of the tire is increased by 4%. what is the new..
calculate the minimum energy a photon must have to produce an electron hole pair in an extrinsic semiconductor of band gap 1.3 electron volts.
Which of the following terms define(s) an acid according to the Bronsted-Lowry theory?
A fishing boat accidentally spills 15.0 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 x 10^2 nm thick, how many square meters will the oil slick cover? Assume that the oil slick forms a ..
A gas mixture contains 1.30g N2 and 0.95g O2 in a 1.57-L container at 22 degrees Celsius. Calculate the mole fraction of N2.
Using a sample that was dissolved in CH 2 Cl 2 , mixed alumina, evaporated the CH 2 C l2 , loaded and began to run his column, starting with C 6 H 14
The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick.
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