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one way of purifying gaseous h2 is to pass it under high pressure through the holes of a metals crystal structure palladium which adopts a cubic
metal a was determined to be 95extracted into methylene chloride with dethizone at ph6 when equal volumes of aqueous and non-aqueous solvents were
need help figuring out the proper steps on how to solvewhat volume of 125m hcl in liters is needed to react completely with nothing left over with
consider the base monosodium phosphate and write the structure of the conjugate acid of this base and explain why an aqueous solution of nah2po4
compute the molar mass of the noble gas kryptonkr in a natural sample which is 22 80 kr molar mass 7991 gmol 084 78 kr molar mass 7792 gmol 1123 82
if 28ml of 70m sulphuric acid was spilled determine the minimum mass of sodium bicarbonate or sodium hydrogen carbonate that should be added to the
determine the molarity of the solution if 300 grams of ammonium sulfate is dissolved in enough h2o to form 300 ml of solutionnbspthe rate constant or
if 28ml of 62 m sulphuric acid was spilled determine what is the minimum mass of sodium bicarbonate or sodium hydrogen carbonate that must be mixed
in a 2 step synthesis where the 1st reaction has a 55 yield and the 2nd reaction has a 24 yield determine the overall percent yield at a certain
determine what would be its temperature after absorption of 94 10-2 kwh of heat if 145 l of water is initially at 250 degchexane has a density 06603
how many carbon dioxide in kilograms is produced upon the complete combustion of 189 l of propanemany home barbecues are fueled with propane gas c3h8
tartaric acid c4h6o6 has two acidic hydrogens the acid is often present in wines and precipitates from solution as the wine ages it needs 2465 of
the international unit for weighing diamonds carat 1 carat 200 mg exactly determine the volume of a 076 carat diamond if the density of diamond is
considering the given reaction 6lisn2g yields 2 li3ns detrmine what mass of lithium in g is needed to react completely with 579 ml of nitrogen gas at
assume 2 flasks each with one litre of a saturated solution of glucosec6h12o6 one solution has one gram of glucosec6h12o6 at the bottom 100 g of
oxidation of nh3yields nitric oxide no and the reaction is represented by the equation 4nh3 5o2 --gt 4no 6h2o determine the percent yield if an 850
160j of work has done by an expanding gas on its surroundings at a constant pressure 101 atm determine the final volume of the gas if the gas ocupied
potassium chromate has an absorbance value 0670 in a cell of 100cm path-length at a wavelength 370nm the value of the molar absorbtivity
boyles apprentice observes that the air trapped in air tube occupies 248 cm3 at 112 atmby adding mercury to the tube increases the pressure on the
when two grams of sodium hydroxide were dissolved in 149 grams of h2owater in a calorimeter at twenty four degree celsius temperature the temperature
silver chlorideagcl often used in silver plating contains 7527 of silver compute the mass of agcl essential to plate 170 mg of pure
give explanation why the boiling point of a 2-component mixture increase slowly throughout a simple distillation while the boiling point differences
a particular flask has a mass of 174916 grams when it is empty when has mass of the flask is 439616 grams filled with ordinary water at twenty
considering the given equations and calculate the heat of the reaction of 3h2g o2g ---gt 3h2og from the heats of reaction as given 3o2g ---gt 2o3g
considering the reaction where ammonium hydrosulfide nh4hs yields nh3ammonia and hydrogen sulfide h2s an equilibrium mixture at a certain temperature