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a gas at 1 atm and 125degc is expanded from a volume of 150ml to a volume of 4l the pressure of the gas after expansion
consider the reaction below what volume of co2 gas will be produced by the reaction of 100 gram of caco3 at 25degc and
the ph of a 0010 mol l-1 solution of a weak monoprotic acid is 209 at 25oc what is the pka for this
if you are limited to two significant figures in your determination of the molar mass what could you do to increase the
write down mass balance and charge balance equations for 0100mol l-1 na2c2o4aq mass balanced equation charge balance
how many milliliters of hydrogen would be collected at a pressure of 754 torr and 22 c in a reaction between 0315 grams
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what is the equilibrium constant kc for the reaction below assume temperature is 25oc hint represent the reaction below
consider the following reaction n2g 3h2g gt 2nh3g the initial pressures of the h2 is 3 atm and the pressure of the n2
when synthesizing aspirin in the lab what is the purpose of the sulfuric acid in the mixture mixed 2g salicylic acid
he diffuses faster than ar because he is smaller has a higher average speed is less reactive is
the equilibrium constant for thr hypothetical reaction below is kp0113 at 250 oc a2g b2g lt---gt 2abg an experiment is
a tank containing h2 and o2 develops a pinhole leak which gas will leak faster and by what factor h2 16 o2 16 h2 4 o2
use coulombs law to calculate the ionization energy in kjmol of an atom composed of a proton and an electron separated
an unkown metal crytallizes in one of the three cubic latticesthe edge length of the unit cell is 408pmgiven that the
what is the ka of the amino acid glutamine if it is 330 dissociated at ph
what is the ph of a solution prepared by mixing 500 ml of 010 m methylamine ch3nh2 with 2000 ml of 010 m methylammonium
the balanced net ionic equation for the neutralization reaction involving equal molar amounts of hcl and ch3ch2nh2
for the next three problems consider 10 l of a solution which is 05 m hf and 02 m naf ka for hf 72 x 10-4 assume 2
titanium iv oxide tio2 is the substance used as the white pigment in paint it is prepared according to the following
metals ions can also be placed in a spectrochemical series in this case larger effective nuclear charges generally lead
write the equations for the following reversible systems a solid kmno4 in a saturated aqueous solution of kmno4 b a
determine the specific heat capacity in jg degrees c of an alloy that requires 842kj to raise the temperature of 3940g