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calculate g for the reaction aa--gt p q at 37 degrees c when the equilibrium concentrations are a1 microm q2 mm p4 mm
ethylene diamine bp 116 c and water form a maximum boiling azeotrope bp 120 c the azeotropic mixture is 80 in ethylene
a first order reaction has an activation energy of 724 kjmol and a frequency factor arrhenius constant of 178 x 1013
calculate the molarity and the molality of reagent grade nitric acid the specific gravity of this solution is 140 and
columns in the periodic table are called groups and the rows are called periods notice that the groups are labeled 1 to
derive an expression for work done in reversible isothermal expansion of a gas obeying van der waals equation calculate
a sample consisting of 100 mol of a van der waals gas is compressed from 200 dm3 to 100 dm3 at 300 k in the process 202
exactly 75 ml of a 03132m solution of na2so3 were treated with 150 ml of 04025 m hclo4 and boiled to remove so2 the
quantitative analysis of an unknown organic compound showed it to contain only c h and cl combustion analysis of a
a vertical cylinder has a 10kg frictionless piston 5cm in radius inside the cylinder are 10 mols of helium at 2 bar and
a solution has a hydroxide ion concentration of 954 x 10 to the neg 5 m what is the hydronium ion concentration step by
four ice cubes at exactly 0 circ rmc having a total mass of 535 g are combined with 110 g of water at 77circ c in an
if 53 g barium chloride is reacted with excess sodium sulfate how many grams of barium sulfate are
how much energy is required to break a single ne-21 nucleus into protons and neutrons if the nucleus has a mass of
what mass of na2cro4 is required to precipitate all the silver ions from 960 ml of a 0650 m solution of
the half-life of carbon-14 is 5715 years if an animal bone contains 200 grams of carbon-14 when the animal dies how
a 175 g sample of c2h6 mm 3007 g i mol was maintained in a 125 l vessel at 2906 k it was allowed to expand
a 2l steel vessel is filled with 15atm of he gas at 25 degrees celsius then 5 grams of o2 gas are added to the vessel
energetic free electrons can transfer their energy to bound electrons in atoms in 1913 james franck and gustav hertz
a solution containting 145g of an unknown substance in 265g of succinonitrile was found to freeze at 344 degrees
the soluability of co2 in water is at 25 degree c and 1 atm is 0034 moll what is the mass of co2 found in a 335ml can
calculate the molality of a 0052 m solution of ethyl alcohol in water at 25 degree celsius assume the density of the
5g of oxygen combines with 3720g of uranium to form uranium oxide what percentage by mass of this compound is o and
a solution of vinegar is 468 by mass acetic acid in water assuming the density of vinegar is 100 gml what is the
a deepsea diver breathes compressed air with the partial pressure of n2 equal to 43 atm given the henrys law constant