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what structual difference allows the sepeartion of eugenol from acetyl eugenol lab-extraction of eugenolso far i know
photochemistry is when light causes a chemical reaction to occur a simple example is when light breaks a cl2 molecule
let the fourmula for the hydrous copper sulphate be cuso4xh20 where x represents the number of water molecules if the
387g of nh4cl was dissolved in 100 ml of distilled water and then titrated with 05m of naoh at equivalence the volume
what spectral features including mass spectrum proton spectron carbon spectrum and ir spectrum allow to distinguish
which is more deshielding to surrounding protons a carbon double bonded to oxygen a carbonyl group or a benzyl
if the purity of compounhe z is 87 and the reed value for its molar extinction coefficient is 9200m-1 cm-1 at 605nm
when a voltaic cell is constructed from a ag aq 10 moll-1ag s half-cell and a standard hydrogen electode the cell emf
when aqueous solutions of pbno32 and na2so4 are mixed a precipitate of pbso4 is formed calculate the mass of pbso4
using the sandmeye reaction as one step outline the steps necessary to prepare 4-iodotoluene and 4-fluorotoluene from
calculate the average value of the cosine of the angle between the electric field direction and the molecular
if 200 g of iron metal are reacted in a calorimeter with a heat capacity of 500 joulescelsius what would be the final
calculate the ratio of the masses of the buffer components hclokclo required to make a buffer with a ph of
there is a solution which includes h03m fe2005m and pb2005m and that this solution is saturated with h2s means you take
a 138-g piece of zinc was heated to 988 oc in boiling water and then dropped into a beaker containing 450 g of water at
sulphur displays a wide range of oxidation numbers determine the oxidation number of sulphur in each of the following
what would account for the exothermicity that might occur when ammonium hydroxide is first added to the crude
oxyanions of phosphorus are buffer components in blood for a kh2po4na2hpo4 solution with ph 740 ph of normal arterial
balance the equation and calssify the reactions if an oxidation reduction occurs write the half reactions and identify
what is the molarity of a solution made by dissolving 100 grams of hcl in enough water to make 100 ml of
what is the ph of a solution created by mixing 200 ml of a 159 m nahso3 solution with 207 ml of a 111 m na2so3
consider the titration of a 240 ml sample of 175 m of ch3nh2 with 155 m hbr determing each of the followinga initial
i although electromagnetic energy behaves as both waves and particles this kind of wave-particle duality is not
the solubilty of suberic acid is 014g100ml of water or 056g100ml of ether calculate the volume of ether needed to
when 300 g potassium carbonate k2co3 was mixed with 200 ml of hydrochloric acid hcl 40m in a calorimeter the