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Identify the chirality center(s) in the compound. How many stereoisomers exist for this compound?
Question- Does anyone know if you can use colorimetric titration (EDTA) to test lead, nitrate, magnesium, chlorine in drinking water. If so can you provide with a procedure for each and how to calculate mg/l, ppm for each.
From the time the mass of the flask is first measured until the time it is finally measured, it is handled a number of times with oily fingers. Does this lack of proper technique result in the molar mass of the vapor in the flask being reported as..
A hydrocarbon undergoes complete combustion to form 6.9 g CO2 and 2.8 g H2O. What is the empirical formula for the hydrocarbon?
how might the addition of water helped convert this by product into the desired product?
Compare the roles that these groups might play in catalysis with those of zinc in carboxypeptidase.- What atoms are formally reduced in the overall reaction?
Dalton law of partial pressure - The partial pressure of oxygen is maintained at 0.20 atm at this depth
Question- Show the step by step synthesis of Gly-Ala-Phe using the Merrifield protein synthesis. Show the structure for BOC and other relevant pieces at least once before you start abbreviating them.
A gaseous mixture contains 420.0 Torr of H2(g), 391.3 Torr of N2(g), and 79.5 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.
A certain quantity of gas occupies 61.3 mL at 68C. If the pressure remains constant, what would be the volume of the gas at 128C?
A solution of sodium chloride contains 502 g NaCI in 900 grams of water. what is the concentration of the colution in parts of a million (ppm)? Round to the nearest tens place. don't forget the unit.
Problem- The equilibrium constant of a certain reaction was measured at various temperatures to give the plot shown below. What is ?S° for the reaction in J/mol K
calculate delta s values for following reactions. in each case, account for the sign of delta s. a) C2H4(g) + H2(g) ---> C2H6(g)
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