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explain a sodium-23 nucleus has a mass of 2299373amu explain how much energy in kj is needed to separate the following
a girl is celebrating her seventh birthday every guest is served one large slice of chocolate cake a hamburger french
outline the phase diagram of the system nh3n2h4 given that the two substances dont form a compound with each other that
explain how much heat is evolved when 500ml of cs2 d1263 gml react with 500 l of chlorine gas at 278atm and 27 degrees
a how many liters of ethylene glycol ch2ohch2oh should be added to a car radiator that contains a total of 65 l of
1 what is the wavelength of an electron whose linear velocity is 18185 msec 2 if all the energy is dissipated as light
the following 01m solutions need to have the ionization constants compared so i need to know what there ionization
two identical rubber bands a and b are each 10cm long when relaxed they are looped together to yield a combined length
compute the maximum non-expansion work at constant temperature as well as pressure that an electrochemical fuel cell
explain how does the rate differ in the presence of a catalyst do you believe that the catalyst would be more effective
the standard enthalpy of formation of nh3 is -460 klmol compute the thermal energy evolved when 80 g of h2 react with
a compound composed of carbon hydrogen and chlorine effuses through a pinhole 0411 times as fast as neon choose the
compute the energy change in a system in which 4495 kj of heat is given off at 1925atm pressure and the volume changes
the tosylate of 2r 3r-3-phenylbutan-2-ol undergoes an e2 elimination on treatment with sodium ethoxide depict the
which is the major product of the reaction of 2-methylbut-2-ene with water in the presence of a trace amount of
what steps would you use in the designing of a experiment to classify compounds as ionic or covalent given these
the diels-alder reaction between butadiene also dimethyl maleate yields a ring structure depict the structure and
balance the subsequent redox equation using half-reactions presume that the reaction occurs in an aqueous solution
if barnase is a two-state protein that is denatured in guanidium hydrochloride gdnhcl barnase is 50 unfolded in 3 m
explain what is the relationship between the ionization energy of an anion with a 1- charge such as f- and the electron
35 curies of 18-f can are formed in a 2 hour irradiation of 18-o using 19mev protons with 35 a beam current explain the
explain which atom in each of the following pairs has the greater electronegativity use merely a periodic table a o s b
explain why is the major product between p-anisaldehyde and acetophenone the crossed aldol product rather than the
explain a gaseous fuel mixture stored at 744 mmhg and 298 k contains merely methane ch4 and propane c3h8 while 122 l of
explain what is the magnitude of the partial positive and partial negative charges in the hbr molecule 1d336x10-30 c m