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volume of a piece of galena is 47 cm3 determine the mass of that piece of galena if the density of galena is 75 gcm3 express your answer in kgsuppose
considering the given equationnbsp in whichnbsp 4p45s8 yields 4p4s10 then determine nbspthe maximum amount of p4s10444545 gmol that can be produced
a flask contains 0350 grams of liquid br bromine calculate the number of brbromine molecules present in the flaska calorimeter contains 190 grams of
environment canada used high altitude balloons to observe the ozone o3 levels in the atmosphere also use a similar idiometric titration back
determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 30 ppb
a chemist makes an hbr hydrogen bromide sample and observes that this sample occupies capacity of 279 ml at the temperature of 65c and 502 torr
a female patient requires 270times10-2 grams of a sulfa drug then determines how many tablets should be given to her if there are five tablets in
determine what given process is occurring when the color appears in the flame choose your answer correctly out of the given options1 an electron
compute the vapor pressure at the temperature of 25 degree celsius of h2o above a solution formed by mixing 100 grams of sucrose c12h22o11 fw 3423
draw the valid lewis structures of polyatomic ions in bro4- determine the number of resonance forms for each structure and also determine the formal
using a solution of kmno4 has a percent transmittance of 273 percent when observed in a 115-cm cell at a wavelength of 525 nm compute the absorbance
to calculate approximately the ability of ibuprofen to move through different tissues in the body pharmacologists observed its octanolwater partition
a sample of a solid of 2919 grams is placed in a flask toluene is added to the flask toluene in which the solid is insoluble total volume of liquid
considering the given chemical reactioncacn2 3h2o --gt caco3 2nh3 determine how much ammonia would be formed if 187 grams of calcium carbonate
a volume of 100 litres of is at room temperature that was twenty two degree celsius initially a cooled steel rod at the temperature of 200 degree
considering the given chemical equation as c2h5oh lo2gco2gh2og you just need to balance this equation and also show that the balanced equation obeys
using a carbon dioxide sample that occupies a 254 dm3 volume container at standard conditions determine the volume of the gas at a pressure of 1500
500 ml of 0150m sodium hydroxide is mixed to 595 ml of 0200m weak acid determine nbspthe ph of the resulting buffer if ka 126x10-5enough of a
the 250-ml erlenmeyer flask has the mass of 78639 grams the mass of 250-ml erlenmeyer flask and water 327039 grams supposing the water density 100gml
the solubility of kcl in h2o 340 g kcl100 g h20 at the temperature of twenty degree celsius a solution warm having 500 grams of potassium
determine the numbers of moles of iron that would be formed from 62 moles of co carbon monoxide combining with excess of iron iii oxide
determine what is deltabr- deltat if deltabro3- deltat 0018 ms express your answer in ms the rate of change bro3- is deltabro3- deltatalso
a object of 500 grams agsilver is combined to 755 milliliters of nbsph2o water contained in a graduated cylinder nbspdetermine what would be the
suppose a student dissolve a sample of malic acid c4h6o5 of 256 g in fifty grams of h2o determine the mole fraction of ho2cch2chohco2h in this
determine the molarity of a saturated nai sodium iodide solution aqueous formed as twenty five degree celsius considering that the added sodium