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when jeff ran up a hill at 60 ms the horizontal component of his vector was 45 ms what was the vertical component of
given the following unbalanced chemical equation al cl2-gt alcl3 a 4 pts balance the equation what is the molar mass
the equilibrium constant k for the following reaction isnbsp129times10-2nbspatnbsp600nbspkcocl2gnbsplt-----gtnbspcog
describe four common effective uses to which medieval society put human and animal excrement feces and urine with
stearic acid and linoleic acid are both long chain carboxylic acids with 18 carbon atoms however there is a vast
assume that you are a chemist trying to prepare butyl ethanoate a flavouring agent used in the manufacture of ice-cream
anbsp181nbspnbspmg sample of a nonelectrolyte isolated from throat lozenges was dissolved in enough water to make 100
the experimentally measured freezing point of anbsp125nbspm aqueous solution ofnbspalcl3nbspisnbsp-744degc the freezing
the vapor pressure of carbon disulfide is 3556 torr at 25degc what is the vapor pressure of a solution prepared by
what is the molality of a solution prepared by dissolving 720 g of ethylene glycol hoch2ch2oh in 155 l of water
calculate the molarity of 750 ml of a solution that is 092 by mass nacl assume the density of the solution is the same
a what were the values of the mean mass and the random error for the five sets of ten beads as calculated on your
describe why it may be necessary to identify unknown chemicals in day to day life with specific
the equilibrium constant k for the following reaction isnbsp148times10-2nbspatnbsp604nbspkcocl2glt------gtnbspcog
write the lewis structure and chemical formula of the compound with a molar mass of about 70 gmol that contains 197
1 reference electrodesthenbspedegnbspvalue for the following reaction is 0446 v relative to the standard hydrogen
in the laboratory you dissolvenbsp244nbspg ofnbspsodium iodidenbspin a volumetric flask and add water to a total volume
calculate the volume in ml ofnbsp0665nbspmnbsphinbspneeded to react completely withnbsp675nbspg ofnbspmgco3nbspin a
the concentration of anbsphydrogen peroxidenbspsolution is determined by titrating it with anbsp01101nbspm solution
anbsp05071-g sample of an unknown monoprotic acid is dissolved in water and titrated with standardizednbspsodium
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question describe the chromatography process and the different azo dyes
a thenbsphydroxidenbspion concentration in an aqueous solution ofnbsphclnbspisnbsp29times10-13nbspm calculate h3onbspph
a solution at 25 degc has anbspnbsphydroniumnbspion concentration ofnbspnbsp10times10-13nbspmnbspnbspanbspwhat is
a what is the conjugate acid ofnbsphco3- enter formulanbspnbspb what is the conjugate base ofnbsphcooh enter