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what would be the formula for the compound sample if a sample of a compound contains 136 mol of nitrogen atoms and 272 mol of oxygen atomsconsidering
determine the molar mass of the substance if 1200 grams of a pure sample contained 240 mol of the substance express your answer in gmolx is an
in a batch reactor the decomposition of species a follows n-th order kinetics as a-gtb rk cnthe conversion of a reaches 50 in a five minute run what
when an unknown compound z of 951 grams was added in 92 grams of c6h6 benzene determine what is the mole fraction of x nbspnbsp if the vapor pressure
determine how many moles of cation are produced when 646 grams of nh4cl is dissolvednbspcompute the difference in the ionization energies for the 1h
the three naturally occurring isotopic forms of k are 39k 38963707u 40k 39363999 u and 41k the percentage natural abundances of 39k and 41k are
what is the compounds molar mass if the density of a gaseous compound of phosphorous is 0943gl at 474k when its pressure is 728 torra single
use the henderson-hasselbalch equation to perform the givennbsp calculations compute the volume of the 0500 m acetic acid and the volume of deionized
an ecell consists of a ag electrode in contact with 346 ml of 01 m silver nitrate solution and a mg electrode in contact with 288 ml of a 01 m mgno32
determine number of moles of oxygen molecules are in the cylinder if the volume of the cylinder is 5500 ml and the pressure of the o2 in it is 25
what volumes of the stock solution will you have to pipet into the flasks to prepare standards of 100 200 500 and 100x10-3m kmno4 solutions if you
how much heat does your body lose when 25 grams of sweat evaporates from your skin at the temperature of 298k assume that the sweat is only water the
when substitutionally incorporated into 1 kg of silicon will establish a charge carrier density of 3091times1017 carrierscm3 then determine the
a variety of ions with na k nh4pb2 fe2 no3- cl- br- s2- and co32- are addednbsp in a beaker of h2o which substances would you expect to find if you
analyze the state shape the hybridization of the central atom and give the ideal bond angles and any expected deviations for selenate ion
describe the hybrid orbitals used by the central atom in o3and also determines what is the number of sigma and pi bonds present in o3nbspdescribe the
what mass of the hydrate could be recovered from the solution when separated from a h2o solution copper sulphate forms a hydrate with 5 water
hof also known as hypofluorous acid is very unstable decomposing in a first-order reaction to give hydrogen fluoride and oxygen with a half-life
in order to make a standard solution of ethylene diaminetetraacetic acid pure disodium edta dihydrate can be used as a primary standard determine how
the temperature of the air in a resonator is 15degc when a tuning fork vibrates at one end the spacing between tow successive resonances is found to
rank the given solutions in aquous form from lowest to highest boiling point 05 m nacl 1 m kcl 05 m bacl2 1 m bano32nbsp1 bano32 lt 05 m nacl lt 05 m
an object of mass b has a speed that changes with distance d according to v bx-n what is the force as a function of d what is the position as a
in an hypnotic drug captodiamine c21h29ns2 the the sulfur 3596 gmole was converted to sulfate and determined gravimetrically then compute the average
peroxyacetyl nitrate is an air pollutant produced in photochemical smog by the reaction of hydrocarbons oxides of nitrogne and sunlight peroxyacetyl
at t0 butadiene was introduced into an empty vessel at 326 degree celsius and the gas phase dimerization reaction was followed at constant volume by