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determine the mass of the water by using the waters density specific to the initial temperature and the volume of the
calculate the thinkness of the monolayer assuming that the volume of the monolayer is 739times10-6 ml and diameter of
a chemistry student needsnbsp550 gnbspof dimethyl sulfoxide for an experiment by consulting thenbspcrc handbook of
a chemistry student needsnbsp150 ml of acetone for an experiment by consulting thenbspcrc handbook of chemistry and
a chemist weighed outnbsp779 g of calcium calculate the number of moles of calcium she weighed outround your answer
what is the lithium by mass in a sample of pure lithium carbonate that has a sample size of
need help with thisthe element gallium has an average atomic mass of 69723 amu and only two naturally occurring
this is a chemistry question regarding physical and chemical changes the question is the followingyou mix 3 liquids and
a chemistry student needsnbsp700 ml of dimethyl sulfoxide for an experiment by consulting thenbspcrc handbook of
a chemistry student needsnbsp700 g of ethanolamine for an experiment by consulting thenbspcrc handbook of chemistry and
determine the number of moles of oleic acid in the monolayernbspassume the nubmer of grams of oleic acid in the
a chemistry student needsnbsp600 mlnbspof carbon tetrachloride for an experiment by consulting thenbspcrc handbook of
uranium vi fluoride is crucial for the enrichment of weapons-grade uranium if a 10 mol sample of helium effuses in 255
one of the 5 halogens which are diatomic has the fastest root mean square velocity at stp calculate this velocity in
an inhaled anesthetic of formula c2hbrclf3 is unusual in that it contains three different halogen atoms but no oxygen
a balloon has 050 mol ar at 175 k 0997 atm and 0775 l if the moles are doubled and the temperature dropped to 115 k at
given the ultra-high abundance of their elements in air it is not surprising that these six compounds are common
carbonated drinks like cola tonic water and club soda are pleasantly bubbly due to the following decomposition of
hydrogen sulfide h2s a toxic gas redolent of sewage and rotten eggs is prepared from hydrochloric acid and sodium
how many electrons in a tellurium te atom have a principal quantum number of n 4 and a magnetic quantum number of
at a seaside resort where the temperature is 25degc a child holds a 15 l balloon her grip on the balloon loosens and it
a 2500ml sample of sulfuric acid a diprotic acid was titratedwith 2466ml of aqueous naoh upon evaporation 0550g of
a helium filled water balloon is launched from the ground where the pressure is 752mmhg and temperature is 21c under
the freezing point depression constant forwater is -186 cm if 500 g na2so4 is dissolved in 450 g h2o the freezing point
to determine in a born-haber cycle how exothermic the formation of kcl from potassium metal and chlorine gas is we need