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maldi is a competitive method to esi how does the ionization process work and what are two distinct advantages and
in esi it is very important to regulate the ph of the solution therefore the solution is usually buffered or has added
gasohol is a mixture of ethanol and gasoline used to increase the oxygen content of fuels and thus reduce pollutants
a synthesis gas at 500degc that analyzes 64 co2 02o2 40 co 508 h2 and the balance nitrogen is burnt with 40 dry excess
about 30 of crude oil is processed eventually into automobile gasoline as petroleum prices rise and resources dwindle
calculate the standard 25degc and 1 atmosphere heat of reaction in gram mole of the first reactant on the left-hand
when a sample of nh3g 7906 grams is placed in 3100 l reaction vessel at 8930 k and allowed to come to equilibrium the
at 1050 k kp 0900 for the following reaction h2g co2g h2og cog if 0200 atm of h2 and 0200 atm of co2 are admitted
a mixture of 1374 g of h2 and 7031 g of br2 is heated in a 200-l flask at 700 k the following equilibrium is
what is the relationship between keto and enol forms of acetone ch3coch3 a resonance structures b diastereomers c
outline the steps involved in the synthesis of 3-chloro-4-fluoroacetophenone from 4-
the greater acidity of terminal alkynes as compared with alkanes is primarily attributed to a the greater
a voltaic cell consists of a mnmn2 electrode edeg -118 v and a fefe2 electrode edeg -044 v calculate fe2 if mn2 0050
calculate the density of n2 at stp ausing the ideal gas law and b using the molar volume and molar mass of
when an aldehyde is reacted with an alkyl lithium compound after acid hydrolysis the result is a a ketone b a primary
cholesterol in blood is measured in milligrams of cholesterol per deciliter of blood hospital blood banks normally
write lewis structure for these species including all resonance forms and show formal charges ch2no2- the formal charge
the melting point of ca is 851 c its solid state specific heat csolid is 632 jg c and its heat of fusion is 233 jg how
for each of the following pairs of substance predict which member of the pair will have the higher melting point and
how mant grams of ag3po4 can be produced from the reaction of 25 liters of 0200 m agno3 with an excess of 075 m k3po4
how many ml of h2o should be added to 30 ml of a four molarity solution to obtain a solution with a concentration of
what volume in liters of hydrogen gas measured at stp can be produced from 50ml of 60 m hydrpbromic acid and ac excess
what is the concentration in ppm mm of a sodium chloride solution prepared by adding 375 micrograms of sodium chloride
benzene c6h6 has a characteristic ultraviolet spectrum using the molecular orbital theory account for this uv
calculate the ph of a solution prepared by mixing 450 ml 0f 145 m sodium hydroxide with 560 ml of 0354 m sulfuric