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1.The acid hydolysis of a small peptide was found to be Tyr, Phe, Asp,Gly,Lys,Val and Ala.2.The original peptide when treated with trypsin produced two pepetides:
The density of the unknown solution is 1.232g/mL. Calculate the specific gravity of the solution
A solution is prepared by dissolving 270 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Express the concentration of a 0.0860 M aqueous solution of fluoride, F-, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.
draw the shape of the molecules and give the orbital geometry around the central atom; the molecular geometry; and give the hybridization state
A sample of compound B having an unknown concentration is measured to have an absorbance of .90 in a 1.00 cm path length cell at 500 nm. What is the concentration of B in this sample, assuming Beer's law holds
Iodine-131 is a radioactive isotope. After 7.00 days, 54.7% of a sample of 131I remains.
The half-life of radium-226 is 1600 years. How long will it take for the radioactivity of a sample of radium-226 to decrease from 130 mCi to 10 mCi
The IR spectrum of benzoic acid is included on page 3. Assign three specific absorbance bands (from the peak list below the spectrum) to the corresponding bond vibrations
Suggest syntheses for the following compounds from organic compounds from organic compounds containing no more than four or fewer carbon atoms and any other necessary inorganic reagents.
Magnesium oxide decomposes into magnesium and oxygen. If 16.12 of magnesium oxide decomposes to form 9.72 of magnesium, what mass of oxygen gas is also released in the reaction
what is the mass of the zinc sulfide product. Express your answer with the appropriate units.
draw a six-carbon-chain portion from syndiotactic polypropylene in which the groups lie on alternating sides of the
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