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calculate the energy of one photon of blue light that has a wavelenght of 425 nm and red light that has a wavelenght of
determine the molar volume of co2 at 400 k and 100 atm using the van der waals equation with a 3592 l2atm mol-2 and b
1 the lab manual instructs you to heat camphor at position 2 on the hot plate which is a moderately low setting what
suppose the sulfur content of a mineral sample is determined by complete conversion to ag2sswhat mass of sample must be
develop a hypothesis that could explain why a soap created from the acid ch3ch2ch2ch2cooh has poorer cleaning
koh aq cuno32 aq precipitatekbr aq srno32 aq no precipitatea what are the possible products when solutions of koh
you isolate an acidic compound by suction filtration and think it is still wet how do you remove the remaining water
determine the percentage of mass of the atmosphere that resides between sea level and a height of 183 km assume an
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