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methyl salicylate oil of wintergreen is prepared by heating salicylic acid c7h6o3 with methanol ch3oh c7h6o3 ch3oh reg
a particle of charge 496 is placed at the origin of an xy-coordinate system and a second particle of charge -199 is
the reaction of nitric oxide nog with molecular hydrogen h2g results in the production of molecular nitrogen and water
for the reaction v2o5 6hcl---gt 2vocl3 3h2o if 1365g of vocl3 was produced in this reaction how many grams of v2o5
a volume of 400 of a 0220 solution is titrated with 0600 calculate the volume of required to reach the equivalence
both the 12-dichlorobutane and 13-dichlorobutane products involve 2o secondary structures account for the differences
a compound containing only carbon hydrogen and oxygen was analyzed by combustion analysis combustion of a 1068g sample
two small plastic spheres are given positive electrical charges when they are a distance of 148cm apart the repulsive
a beaker with 190times102 of an acetic acid buffer with a ph of 5000 is sitting on a benchtop the total molarity of
describe how aquatic photosynthetic organisms can cause daily variations in dissolved oxygen levels and may cause the
as a technician in a large pharmaceutical research firm you need to produce 300 of 100 potassium phosphate buffer
a very strongly absorbing complex molecular weight 1000 gmol has a molar absorptivity of 40000 m-1 cm-1 assuming a 10
a 125 lb person falls from height of 10 ft he bends his legs so that he comes to a stop over a distance of 2 ft still
draw a picture of the following cell showing the location of each species and the anode and cathode pts i fe3 aq fe2aq
a house is 489 ft long and 297 ft wide and has 771 ft high ceilings what is the volume of the interior of the house in
if 500 g of co2 g and 120g h2o g are formed when a hydrocarbon compound is burned in excess o2 what is the
a mixture of a and b was partially separated on an hplc column resultin in overlap of their chromatographic peaks the
an ionic crystal unit cell is composed of two ions x and y the empirical formula of this solid is xy2 if the x ions
calculate the entropy change for the irreversible process of water freezing at -10c for the crystallization of water at
a cylindrical wheel is rotating with a constant angular acceleration of 40 rads2 at the instant it reaches an angular
a compound is composed of nitrogen 874 by mass and hydrogen a gaseous sample h2nnh2 has a density of 910-7kgml at 600
glavin and nicole are running in the bluenose marathon glavin stops for a rest when nicole passes him nicole is running
what is the change in the boiling point of water at 100c per mm change in atmospheric pressure the densities of water
the electric potential energy stored in the capacitor of a defibrillator is 68 j and the capacitance is 120 microf what
a storage container has the dimensions of 232mm by 0145m by 325cm if it is filled with liquid mercury density 13534 gml