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a package of aluminum foil contains 100 square feet and weighs 12 lbs one cubic centimeter of aluminum has a mass of
a 60 solution of kno3 is composed of water the solvent and potassium nitratethe solute 365g of this solution are placed
zinc ii and the ligand l form 11 complex that absorbs strongly at 600nm as long as the molar concentration of l exceeds
if the aspirin crystals were not completely dried before the melting point was determined what effect would this have
a student performed the reaction of this experiment preparation of aspirin using a water bath at 90 degrees c instead
if calcium and chlorine combine to form a compound which of the following terms describes the types of bonds found in
if you used 50 g of salicylic acid and excess acetic anhydride in the preceding synthesis of aspirin what would be the
19 kj f heat is added to a slug of rhodium and a separate 19 kj of heat is added toa slug of zinc the heat capacity of
describe and explain the possible effect on your results of the following experimental errors or variations in each
doing a tlc experiment with a non-polar mobile phase and a polar stationary phase silica gel i was wondering why
according to molecular orbital theory in the case of a carbon-carbon double bond the carbon-carbon bonding electrons of
using your answer from part a calculate the volume of a mole of na atoms in cm3mol assume that the entire volume is
write out the balanced equation for the reaction that occurs when ca and alno33 react together you do not need to make
the pk value for the active site residue glu35 is 63 what is the ratio of ionized to protonated glu35 residues at ph
2hg2 n2h4 ------gt 2hg n2 4hif 1352 grams of mercury if formed if you had 1350 ml of hg2 what was the original
identify the most important types of interparticle forces present in the solids of each of the following substances ar
a student prepared a solution by dissolving 04351plusmn00002 g of nacl formula mass of nacl is 58443plusmn0002gmole in
you are a logger out in the woods you find a log that could be spruce or birch in order to figure out which is you put
the formula for caluculating a dilution of a solution is m1v1m2v2 use this equation to calculate the volume of a 20 m
what would happen if the kinetic energy of the reactants were not enough to provide the needed activation
when ethyl chloride ch3ch2cl is dissolved in 10 m naoh it is converted into ethanol ch3ch2oh by the reactionch3ch2cl
vanillin used to flavor vanilla ice cream and other foods is the substance whose aroma the human nose detects in the
a solution containing 100 mmol cacl2 is diluted to 1 l calculate the number of grams of cacl2 2h2o per milliliter of
a farmer applies 17000 kg of a fertilizer that contains 100 of nitrogen to his fields each year fifteen 150 percent of
in biological cells that have a plentiful supply of o2 glucose is oxidized completely to co2 and h2o by a process