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normal gastric juice has a ph of about 2 assuming that gastric juice is primarily aqueous hcl what is the hcl
what is the energy of photon required to cause the electron in a hyrogen atom to undergo a transition from n2 state to
the electron in the n1 state of a hydrogen atom absorbs a photon with an energy of 212x10-18 j what is the final state
if the average bohr radius in the n1 orbit 325x10-8m what is the wavelength of the standing electron
which of the following sets of the four quantum numbers n 1 ml and ms describes one of the outermost electrons in a
a chemist trying to synthesize a particular compound attempts two different synthesis reactions the equilibrium
as a technician in a large pharmaceutical research firm you need to produce 450ml of 100m potassium phosphate buffer
you need to produce a buffer solution that has a ph of 550 you already have a solution that contains 10 mmol millimoles
a consider the hypothetical reaction a 2b for which go is -166 kjmol in a certain experiment the initial concentrations
under the standard conditions of 1 bar pressure and 29815 k the equilibrium constant kp for a gas phase reaction is
a stoichiometric mixture of fluorine and nitrogen containing a small amount of argon is fed to process producing
which will experience the greater effective nuclear charge the electrons in the n3 shell in ar or the n3 shell in kr
write the electron configuration for zirconium how many electrons are in each energy
what wavelength corresponds to the transition n5 to n3 in the hydrogen atom what type of radiation is
the first ionization energies for ge as and se are 762 944 and 941kjmol respectively explain these values in terms of
a radio station broadcasts at 995mhz another radio station broadcasts at 720 khz calculate and compare the wavelengths
women need to 75mg of vitamin c daily calculate the percentage of your daily vitamin c needs that one serving of juice
assuming that one serving size of juice is 240ml calculate the mg of witamin c in one seving size of the juice vitamin
what volume of chlorine gas at 646 torr and 32oc would be produced by the reaction of 1475 g of mno2 according to the
arrange the following substances in order of increasing strength of intermolecular forces h2o he i2 and
how many resonance structures does hso4- have the way ive been doing it would make it 12 but that seems like itd be too
why is the lewis structure of seo2 one single bond and one double bond wouldnt it make more sense to have two double
the neutralization of 250ml of 024m hcl requires 50ml of naoh what is the molarity of the naoh
identify each of the following statements as describing a chlorination reaction or a bromination reaction- the
a 500ml sample of a nitric acid solution is titrated with 335ml of 0201m naoh what is the molarity of the nitric acid