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Ritonavir, with trade name Norvir (Abbott Laboratories), is an antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS. Its structure is composed of 61.637% C, 6.724% H, 11.660% N, 11.097% O and the remainder is sulfur (S). Determine the empirical formula for NorvirTM and its molecular formula given that its molar mass is 720.946 g/mol.
The solubility-product constant for Ce(IO3)3 is 3.2e-10. What is the concentration in a solution prepared by mixing 50 mL of O.0250 M Ce with 50 mL of 0.040 M IO3? Back of book has 7.0e-3 M
a. if the hexapeptide in question 7 is dephosphorylated then aminoethylated ae at cys and cleaved by trypsin what
a gas was acquired by boiling liquid nitrogen that was stored in a 180.0 l tank. determine what volume of n2 is
Two of the Group 12 elements exhibit very similar chemistries to one another, while the chemistry of the third is somewhat different. Identify the Group 12 element whose chemistry is different from the other two Group 12 elements.
the neutralization of HCL with NaOH at 25 degrees celsius is -79.9 kj/mol. Calculate the equilibrium constant for the reaction.
How much heat is produced in burning 9 mol of ethylene (C2H4) under standard conditions if reactants and products are brought to 298K and H2O (l) is formed
At room temperature (20), milk turns sour in about 63 hours. In a refrigerator at 3, milk can be stored three times as long before it sours.
The reaction of aqueous zinc chloride and aqueous potassium phosphate is represented by the balanced net ionic equation. 3Zn2+(aq) + 2PO43-(aq) -----> Zn3(PO4)2(s) Give the balanced complete ionic equation for the reaction. Include the states.
at 27 degrees celsius the vapor pressure of pure water is 23.76 mmhg and that of an aqueous solution of urea is 22.99
Problem- Draw complete mechanisms that explain the product distributions when NH4Cl and NH4Br are mixed with 1-butanol and 2-methyl-2-propanol
Can anyone please tell me what effect reacting a carbonyl compound, (specifically, (CH3)2CO) with LiCCH, followed by H2O
A biochemical engineer isolates a bacterial gene fragment and dissolves a 10.9 mg sample of the material in enough water to make 36.5 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gen..
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