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The pentapeptide leucylglycylthreonyltyrosylalanine is first incubated with l-fluoro-2,4-dinitrobenzene (FDNB). When the resulting compound is heated to 110oC for 24 h in the presence of 6 M HCl, the solution will contain:Select one:
a. one alpha-amino acid labeled by FDNB and an unlabeled tetrapeptide.
b. five alpha-amino acids with only leucine labeled by FDNB.
c. all five alpha-amino acids, each labeled by FDNB.
d. all five alpha-amino acids, but only alanine will be labeled by FDNB.
Determine the volume of the sample. (b) Plot the data. Now suppose you add another 5.00 mol of gas molecules into the same volume.
The two phases are allowed to come to equilibrium with their product ammonia in a vessel of fixed volume and at a temperature
How many grams of iron are formed when 275 grams of carbon monoxide react with excess Fe2O3
You are going to a birthday party and you want to give the children balloons filled with He gas. How many balloons can you fill to a volume of 2 liters if the internal gas pressure of the tank
When the reaction is conducted in this way, however, a polymeric product is produced after step 1. What is the structure of the polymer? Why does p-acetamidobenzenesulfonyl chloride not produce a polymer
If a solution containing 30.87 g of mercury(II) chlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfide,
Foruntantely, this toxin decomposes to a safe mixture of products by first-order kinetics with a rate of .27 days^-1. How long will it take for the water to be safe to drink
The standard free energy of activation of a reaction A is 76.8 kJ mol%u20131 (18.4 kcal mol%u20131) at 298 K.
A zero-order reaction has a constant rate of 2.90×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 9.00×10-2 M, what was the initial concentration.
If you were to combine a 200.0mL aqueous solution of 0.75M NaHCO3 with 200.0mL of 0.50M CaCl2 in a constant pressure calorimeter, what change in temperature would you measure?
Which of the following elements would you expect to gain electrons in chemical changes
A mixture of 2.00 moles of H2, 3.00 moles of MH3, 4.00 moles of CO2, and 5.00 moles of N2 exert a total pressure of 350kPa. What is the partial pressure of each gas?
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