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utilizing paper chromatography a student separated a dye spot into 3 components a b c the components traveled 42 cm 57
a in an experiment done carefully thus there is a 100 yield 005 g of iron reacted with hydrochloric acid to give 0145 g
depict all forms of histidine at ph 65 present at a level of at least 10 of the total possible
explain which isomer cis-stilbene or trans-stilbene would be expected to have a higher rf value in thin layer
suggest a detailed mechanism for the reaction of the anion of diethyl benzylphosphonate with
a quantity of 500ml of 50 m h2so4 is mixed with 100 l of 25 m sroh2 in a constant-pressure calorimeter having a heat
define how nmr spectroscopy could be utilized to characterize the trans geometry of the double bond of the alkene
define the equation that is used to explain the fractional of a compound that is in a certain chemical form and apply
titrate 2500ml of a solution of hcl with a standardized solution of naoh that has a molar concentration of 128m the
state five different chemical forms of cadmium that may be found in natural fresh water or seawater for instance cd2aq
compare the ir spectra for r and s carvone explain all differences define what does ir signals show in a
consider the subsequent equations these may be acidbase or precipitation reactions if no reaction would take place
explain what is the mechanism for azulene with triflouroaceticanhydride demonstrate resonance water was added and
another student titrated a 04681 g sample of unknown monoprotic acid with 011187 m sodium hydroxide per the procedure
while 30 mol carbonic acid 20 mol sodium bicarbonate and 40 mol sodium hydroxide are dissolved in water explain what is
a 768 sample of a solid is heated to 412 c as well as placed into a colorimeter containing 100 of olive oil at room
explain what is the volume occupied by 294g of argon gas at a pressure of 120atm as well as a temperature of 456k
explain what is the temperature in kelvin of 064mol of gas at a pressure of 14atm as well as a volume of
depict the structures of the diels-alder reactions betweena 1 3-butadiene and trans-ch3-chch-chob anthracene and ho2c-c
when 5-hydroxypentanal reacts with itself in solution define what is the structure of the hemiacetal formed give the
a 309ml sodium hydroxide solution of unknown concentration is titrated against 0113 m terephthalic acid a diprotic acid
dry cell batteries are habitually powered by the reaction below explain how many grams of ammonia would be produced if
utilizing the resonance energies of benzene andnaphthalene define why diels-alder reactions of anthracene takeplace at
ozone o3 in the atmosphere can be converted to oxygen gas by reaction with nitric oxide no nitrogen dioxide is as well
a certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end the primary volume was