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explain why do we need potassium carbonate before distillation i did an ethanol from sucrose lab as well as the ta had
explain what are the concentrations ofhso4-so42- and h in a 020 m khso4 solution h2so4 is a strong acid ka forhso-4
explain what volume of 01209m hcl is necessary to neutralize 05462 grams caoh2 include a balanced chemical
a compound with a molecular formula of c8h16 demonstrates the subsequent spectroscopic data identify this
explain what would the reaction quotient q be if the volume of the container decreased by a factor of 3541 for the
presuming that the drug components of something we are experimenting with dissolves entirely when we stir the tablet
describe one or more simple chemical tests that would distinguish acetaminophen from
presume carry out a tlc separation of acetaminophen as well as phenacetin on silica gel using a non-polar developing
the reaction of an equimolar mixture of isopentyl alcohol also acetic acid will produce at most 67 of the theoretical
in a study 08180 g of ferric oxide is reacted with 05969g of carbon monoxide gas according to the equationfe2o3 co gt
explain how the procedure for the preparation of isopentylacetate could be modified to raise the yield and purity of
methanol and sodium sulfate are by-products of the synthesis of salicylic acid throughout which step of the synthesis
220 l vessel contains 510 g of a gas at 100atm and 270degca compute the density of the gas in grams per literb define
in a research 2060 g of silicon dioxide is reacted with 3488 g of hydrogen fluoride gas according to the equationsio2
if a student prepares a solution of carbonate-free naoh ahead performing a rough titration the student discovers the
explain what are the names mass number number of proton number of neutrons number of electron atomic number atomic
a sample of o2 gas occupies a volume of 314ml at 570 c and 197 atmospheres explain what volume wills it occupy when the
explain the rate of effusion of oxygen gas is twice the rate of effusion of an unknown gas under the same conditions of
if bromine has two naturally occurring isotopes the average mass of bromine is 79904 u if 5054 of bromine is found as
lithium has two stable isotopes with masses of 601512 u and701600 u the average molar mass of li is 6941 u explain what
if the computer writes electron configurations in the form for fe for example ar4s23d6 which we would write ar4s23d6
explain a metal weighs 2166 g determine the volume of that metal that is150 cm long0550 cm wide and 0250 cm
the compound ab is in equilibrium with a as well as b- in a specific solvent at a given temperature if the equilibrium
the atmospheric pressure on mars is about 200 torr depending on the location express this pressure in atm psi and
a solution of 200 g of para-dichlorobenzene a clothes moth repellant in 500g of cyclohexane freezes at 105 deg c