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how many sr2 ions are in a mole of sr3po42 also how many po43- ions are in a mole of
find the mass of s8 required to produce 837l of sulphur dioxide gas at stp from the reaction described by the following
2 mechanismsreaction of benxaldoxime and clorox to form benxonitrile oxide treat clorox as cl2 and naoh reaction of
what is the theoretical yield of ethyl chloride in the reaction of 191g of ethylene with 51g of hydrogen chloride for
determine the mass of carbon monoxide produced when 064g of antimonyiii oxide reacts with carbon according to the
a student who was isolating aspirin stopped the experiement after the filtration step with alumina one week later the
determine the percent yield for the reaction between 1793g of sb4o6 and excess c if 191g of sb is recovered alone with
titrated acetic acid with sodium hydroxide the endpoint measured 279 ml the naoh concentration was figured out by
if 168g of co is mixed under high pressure with 178g of h2 what mass of methanol ch3oh will be
determine the percent yield for the reaction between 824g of rb and 1349g of o2 if 397g ofrbo2 is
2 when 276 g 00200 mol of k2co3 was mixed with 300 ml of approximately 2m hcl the temperature rose by 52degca write a
explain why c-h single bond stretching is observed in the functional group higher energy region of the ir but the
a neutral amino acid has a pka1 of 40 and a pka2 of 100 what is the ph of the solution of this amino acid if 80 is in
what is the ph of a buffer system in which the relevant pka is 50 and there is an acidbase ration of
the keq of a biochemical reaction is 190 calculate the standard free energy change associated with this reaction r1987
express the work of isothermal reversible expansion of a van der waals gas in reduced variables and find a definition
a 12475 g sample of a kcio3 - kci mixture is strongly heated all of the kci3 in the mixture undergoes decomposition the
the dilution of the buffer should not change the ph of the buffer by very much explain why
the thought process was for the synthesis given for m nitro toluene in the solutions for 24 d where they add the och3
a plane wall is constructed of a material having a thermal conductivity that varies with the square of the temperature
an aqueous solution of ki has a freezing point of -195 c and an osmotic pressure of 250 atm at 25 c assumong that ki
a certain superinsulation material having a thermal conductivity of 2 x 10-4 wm c is used to insulate a tank of liquid
if one attempts to methylate benzene completely with ch3clalcl3 the product contains a greenish solid of the formula
the solubility products of pbso4 and srso4 are 63e-7 and 32e-7 respectively what are the values of so42- pb2 and sr2
tulips bulbs cost 119 each i want to plant tulips every 3 inches along the border of my garden which is 10 feet long