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the reaction between c2h4 and hbr to form c2h5br is carried out in a continuous reactor the product stream is analyzed and found to hold 517 mole
what is thenbsptotal energy of the photons detected in a period of one hournbspif a radiation detector is capturing 8 x 107 photons per second at
determine the volume of co2 at a temperature twenty two degree celsius and a pressure of 781 mmhgnbsp could be absorbed by 327 grams of lithium
during a breath the average human lung expands by about 050 l how much work in rm j is done during the expansion if this expansion occurs against an
when the initial concentration of reactant is 071 m a second-order reaction has a half-life of 18 s then determines the rate constant for this
the rate constant for a particular second-order reaction 047 m-1s-1 the initial concentration of reactant 025 moll then determine how long will it
what is the mass in mg of 25 x 1018 atoms of americium-241 present in the smoke detectors if a tiny speck of radioactive americium-241 24106 gmol is
determine the numbers of oxygen molecules are required for each molecule of c6h12o6 glucose that is oxidized if glucose is oxidized by molecular o2
compute the hydroxide ion concentration in a nh3 solution that is 0091 m and 0028 m nh4cl kb of nh3 is 18 x 10-5using a sample of gas of mass of 387
a sample of 1000 mlnbsp of 010 m ammonia nh3 is titrated with hno3 of 010 m find out the ph of the solution after adding 1000 ml of nitric acid hno3
determine volume of na2s2o3 sodium this sulfate and h2o water are required to produce an estimated 010 m solution starting with 10 m na2s2o3 sodium
determine at what minimum angle relative to the centerline perpendicular to the doorway can someone outside the room hear no sound use speed of sound
considering the given equation as 4no2g o2g at the temperature of twenty five degree celsius and nbspk 338x10-5snbsp rate constant for the reaction
according to the equationnbsp ch3nh2aqh2olgtch3nh3aqoh-aq kb44 x 10-4 ch3nh2 is a weak base that mix with h2o ch3nh2 of 500 ml solution is obtained
considering the given equation as p4 s h2g --gt ph3g balance this chemical equation and determine how many grams ofnbsp phosphine ph3 can produce if
compute the mass of air in an air-filled tire and the also determine the mass of he in a helium-filled tire suppose volume of the tire is 856nbsp
determine what volume of hydrogen h2 gas measured at the pressure and temperature 758mm hg and 88 degrees c respectively is essential to synthesize
one mole of nitrogen gas n2 is confined within a cylinder at the temperature of twenty five degree celsius and heated to the temperature of 275
considering the given equation 4fes 3o2g 2fe2o3s compute the amount of heat evolved in the oxidation of 320 gramsnbsp of fe atnbsp the temperature
a scientist has 200 g samples of each of the metals which are all at the same temperature then determine which metal will reach the lowest
using a beaker that contains 100 ml of h2o thermally insulated from its surroundings one mol of solid cacl2 is mixed and solution is stirred
at the temperature of twenty five degree celsiusnbsp when 100 g of sulfur is burned at constant pressure in an atmosphere of oxygen to give so2nbsp
when ch4 methane of two grams are burned in a bomb calorimeter the temperature rises from twenty four degree celsiusnbsp to twenty seven degree
the wavelength of light absorbed by rhodospin rhodopsin is the pigment in the retina rod cells responsible for vision and it consists of a protein
determine how do you find out the new freezing point of a solution ifnbsp given the formula is delta t m x kf x i but how do you find it how does it