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nitrobenzene can be nitrated with a mixture of nitric and sulfuric acids draw the product that contains two nitro
the freezing point of a 0975 mass percent aqueous nacl solution is measured to be -0506 degrees celcius what is the
an unknown sample 07844g containing khp is titrated to the equivalence point with 92ml of 00811m naoh how many moles of
the water solubilities of oxalic acid and sodium oxalatte at room temperature are 10 g100 ml and 37g100ml respectively
a compound of elements x and y has the molecular formula x2y3 let mx be the atomic mass of element x and my subscript-y
the rate constant of a reaction is 53510-5 lmols at 195 c and 690103 lmols at 258 c what is the activation energy of
a toroid having a square cross section 300 cm on a side and an inner radius of110 cm has 500 turns and carries a
sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas my answer was 2so2o2
the distinctive odor of vinegar is due to acetic acidch3cooh which reacts with sodium hydroxide in the following
the jewlers mass unit for dimond is the carat by definition 1 carat equals exactly 200 mg what is the volume of a 100
three blocks are in contact with each other on a frictionlesshorizontal surface a horizontal force f is applied tom1 m1
a diver of mass 70kg jumps off a board 10m above the water if his downward motion is stopped 2 secs after he enters the
experiments have shown that for 12-dichloroethane clch2ch2cl in carbon tetrachloride solution at 25 degrees 70 of the
a television station broadcast on a frequency of 89 mhz whatis the wavelength of the electromagnetic wavem what is the
mgo can be formed by combustion of solid mgo write a reaction scheme for the process what operational sign must entropy
2 asteroids are traveling close to each other through thesolar system at a distance of 20x10 to the positive 10 rom
the combustion of methyl alcohol in an abundant excess of oxygen follows the equation 2ch3oh3o2 2co24h2o when 765g of
the k a of hypochlorous acid hclo is 300 x10-8 what is the ph at 250 degrees c of an aqueous solution that is 00200 m
an audio amplifier represented by the ac source and theresistor r delivers alternating voltages at audio frequencies
write systematic coupling patterns showing the relative chemical shifts observed for these alkyl groups explain your
if the humidity in a room of volume 685 m3 at 25degc is 40percent what mass of water can still evaporate from an
in which of these molecules does spin spin coupling occur if splitting does occur give the multiplicity of each kind of
the kinetic friction force between a 600-kg object and ahorizontal surface is 500 n if the initial speed of the object
1500 ml of 8000 moll solution of diprotic acid is mixed with 3000ml of 6000 moll naoh inside a coffee cup calorimeter
a weak base b forms the salt bhcl composed of the ions bh and cl- a 049 m solution of the salt has a ph of 454 what is