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potassium hydrogen phthalate also known as khp khc8h4o4 is frequently used a the neutralization standard for sodium
what if the lewis structure forms an octet around the central atom does it matter than where the dots
explain why the tensile strength decreases while the ductility increases during the annealing
because of increasing evidence of damage to ozone layercfc production was banned in 1996however there are 100 million
the quantity of antimony in an ore can be determined by an oxidation - reduction titration with an oxidizing agent the
a current of 580a passes through a crno32 soln for 170 hours how much chromium is plated out of the
write equations for the half-reactions that occur at the anode and cathode for the electrolysis of each of the
a constant current 1040 a is passed through an electrolytic cell having an impure copper anode a pure copper cathode
the molecular formula of butane is it is obtained from petroleum and is used commonly in lpg liquefied petroleum gas
explain the terms resonance and delocalized electrons why do we draw resonance
determine the density and atomic radius of tungsten w if it crystallizes in a face centered cubic arrangement with cell
calculate the ph of a buffer containing 0030 m hc2h3o2 and 0050 m nac2h3o2 the ka of hc2h3o2 is 175 x
in the reaction 2a x y the initial concentrations are all 0600 m if the equilibrium constant is 120 x 106 what are
calculate the activation energy of a reaction whose rate constant is 422 x 104 ssup1 at 25degc and 454 x 104ssup1 at
a certain reaction has a h of -213 kjmol and a s of -270 jmolk at 625degc determine the free energy change in the
determine the molality of a solution that is 725 m nano3aq and has a density of 137
in one of the neutron-induced fission reactions of u-235atomic mass 235043922 the products are ba -140 and kr-93 a
a gas occupies 678 ml at 0935 atm and 70 f what will its volume be at 1078 atm and 70
calculate the theoretical yield of ammonia produced by the reaction of 100g of h2 gas and 200g of n2
in a redox reaction no2- is oxidized to no3- and cu2 is reduced to cu complete and balance the equation for this
the quantity of an antimony in a sample can be determined by and oxidation reduction titration with an oxidizing agent
the b4o5oh42- ion present in 50 ml of a saturated na2b4o5oh4 solution at a measured temperature is titrated to the
do to friction with the earths atmosphere a large static electric charge could build up on our plummeting asteroid
in the reaction a 2b ------gt p the initial concentrations are all 090 m if the equilibrium constant is 15 e -06 what
a student dissolved 01319g of an unknown diprotic acid in 100ml of distilled water the acid was then titrated with