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calculate the ph of a 1000 ml buffer that is 0158 m hclo and 0099 m naclo after adding 10 ml of 59 m naoh solution ka
what is the mass of h2so4 in a 484-cm3 sample of sulfuric acid that has a density of 152 gcm-3 and which consists of
how much of a 500 ml bottle of 100 molar kcl solution should be diluted with deionized water to give 20000 ml of a 0100
a gas is initially at 12 atm 150 l and odegc what is the final pressure when the same amount of gas is heated to 10degc
gases w x y z obeys van der waaks equation of states with a and b values are given in liter-atm units which gas has
some water dissolves in liquid methane at -161 degrees c the boiling point of liquid methane to give a solution in
sketch the homo highest occupied molecular orbital and lumo lowest unoccupied molecular orbital for pent-3-ene-2-one
2 the product of this reaction contains two stereocenters due to the stereospecificity of the bromination and the
an electric power station burns 50 x 104 tons 1 ton 2000 lbs of coal annually assuming that the coal is 100 carbon
a 30 ml sample of 035 moll bleach solution naocl is reacted with an excess of ki solution according to the following
mass of salicylic acid 014g mass of filter paper 044g mass of impure asa filter paper 056 g mass of prepared impure
iron combines with chlorine in a mass ratio of 1127 how much iron remains after a reaction of10 g of iron and 10 g of
what are some main differences between size exclusion and ion exchange chromatography and what are their levels of
a solution made by dissolving 150g of solute in 250 ml of h2o at 25 degrees c has a boiling point of 10045 degrees c
what is ph of a solution prepared by mixing 100 ml of 0500 m hcl with 300 ml of5 m hf ka hf 71 x
calculate the mass of the deuteron given that the first line in the lyman series of h lies at 82259098 cm-1 whereas
the nuclide 241am decays with a half life of 458 yrs if the activity of 241am in the detector is 3104 bq calculate the
camphor c10h16o melts at 1784 degrees c and has kf377 km a sample of unknown substance that weighs 840g lowers the
provide the mechanism for the preparation of p-nitrobenzene diazonium cation from p-nitroaniline and nitrous acid
during the coupling reaction with 2-napthol why does the coupling electrophilic substitution occur only in the
a current of 30a is passed through an aqueous solution of copper ii nitrate for about 15 minutes how many milligrams of
how do we know if a buffer is more effective against an added acid or an added
living wood has a carbon-14 specific activity of 153 disintegrations per minute dpm per gram of carbon a wood sample
a blood sample has an h3o 46 x 10-8 show how to determine and then calculate the ph poh and oh- of this blood sample in