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compute the empirical formula of an arsenic sulfide compound that is formed by reacting 347g of arsenic to form 570 g
explain why is the cell membrane not an absolute barrier between the cytoplasm as well as the external
utilize symmetry considerations determine all coefficients in the hybrid orbital equations for linear sp
a in the alpha helix the amino acid side chains project out from the coiled backbone of the polypeptide chainb explain
a soil sample was examined for lead a 1765 gram sample was microwave digested with 30ml of nitric acid the resulting
carefully weigh out about 125mg of vitamin c as well as place it in a 100-ml beaker in approximately 50ml of water pour
explain which of the subsequent amino acids when presented in a polypeptide chain interrupts the alpha helical
explain in a typical globular protein which of the side chains of the subsequent groups of amino acids will be most
a lead oxide can react with co2 to form lead carbonate below compute the equilibrium constant k for the reaction below
a compute the rate constant for the oxidation of fe2 below in a water sample that is open to the atmosphere given that
define a bird is flying around the world at a rate of 4332 insec explain how many weeks will it take to complete its
the dispersion of a diffraction grating such as the one shown at the right is the angle of separation per m of
you would like to create a reflection grating like the one shown at the right with an incident angle of 41deg compute
glutathione is a tripeptide found in mainly living cells limited hydrolysis yields cys-gly and
1 explain why is the general rate law transformed to a natural logarithmic form during the calculations of the rate
approximate the free energy change delta grxn for the subsequent reaction at 298 k if each gaseous substance is present
a use activity coefficients to determine the concentration of hydrogen ions in a solution of 850mm butanoic acid and 01
at equilibrium the concentrations in this system were found to be n2 o2 0100 m and no 0400 mn2g o2g lt----gt 2no
a 05560 g sample of cl- sample was dissolved to make 2500ml of solution a 1000ml aliquot of this solution was titrated
nitrous oxide is a significant greenhouse gas the global sink n2o is 126 tg n yr-1 the mixing ratio is 5595
concentrated nitric acid is 70 by volume explain how many ml of 70 nitric acid are required to make 450ml of 33
convert concentrations keen on different units that is mgl to moll to percent by weight and from molarity to
presume the major solutes in intact lysosomes a cellular organelle are kci 01 m and nacl 003 m we wish to isolate
after you ran reaction with 2g of ferrocene mw 186 gmol 2ml of acetic anhydride density 1082 gml mw 102 gmol as well as