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the specific rotation of r--glyceraldehyde is 87 if the observed specific rotation of a mixture of r-glyceraldehyde and
what observed rotation is expected when 126m solution of r-2-butanol is mixed with an equal volume of a 0630 m solution
using the elements sodium potassium calcium magnesium carbon oxygen nitrogen fluorine chlorine iron hydrogen and
19 in the spectrum of atomic hydrogen several lines are generally classied together as belonging to a series for
the problem states that 436g of an unknown alkali metal hydroxide is dissolved into 1000 ml of water it is then
a 5000 ml solution of 03050 m agno3 was added to a solution of aso43- ag3aso4 precipitated and was filtered off fe3 was
suppose a solution of of naoh a strong base had been submitted for the nh3 a weak base in the procedure predict the
the change in heat for the solution proecss when solid sodium hydroxide dissolves in water is 444 kjmol when a 139 g
914g sample of a nonvolatile solid solute dissolves in 982g of cyclohexane the change in the freezing point of the
a 100-l vessel contains 50 atm of co and 30 atm of no2 at 25degc how much heat in joules will be liberated if this is
an equilibrium mixture of pcl5g pcl3g and cl2g has partial pressures of 2170 torr 132 torr and 132 torr respectively a
what volume of 0250 m na3po4 is required to precipitate all the leadii ions from 1400 ml of 0750 m
give the major product that would be obtained from treating an excess of the given compound with br2 at 125 degc
acetylene gas ethyne hcch burns in an oxyacetylene torch to produce carbon dioxide and water vapor and the heat needed
dissolved iron precipitates from acidic solution by addition of oh- dissolved iron can be either feii or feiii for each
calculate e q and w if 800 moles of co2 g reacts with excess nitrogen gas according to the following reaction at 25degc
a student carried out a recrystallization and obtained a 105 yield of material with a broad melting point the material
write the lewis structure and the melting point of sodium bromide is this a molecular substance or an ionic
a certain substance x decomposes it is found that 50 of x remains after 100 minutes how much x remains after 200
a sample of h3a with a mass of 03606g was dissolved in water and titrated with 016m baoh2 solution245ml of base were
how do you write the net ionic equation for the precipitation of aluminum phosphate from aqueous
when 1 mol of glucose is burned 28025 kj of energy is released calculate the quantity of energy released to a person by
if a face centered cubic unit cell has a volume of 1477 x 10 to the eighth power pm cubed and the ions at the corners
if you add a strong acid to a pure solution then a weak acid to another pure solution what does the ph levels in both