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problem- explain in words how you would prepare 1 l of 1 m tris buffer at a ph of 80 the molecular weight of tris is
problem- determine the volumes of 025m nah2po4 and 025m na2hpo4 that need to be mixed together to produce 800ml of a
problem- at 25 degc and 765 torr carbon dioxide has a solubility of 00342 m in water what is its solubility at 25 degc
problem- what is the freezing point of a solution prepared by dissolving 15 g of kbr in 100 ml of water the freezing
problem- a commercial bleach solution contains 362 mass naocl in water calculate the mole fractionplease explicate as
problem- consider the following electrochemical cell at 298 k one compartment contains a 100-m solution of silver
problem- define activation energy how does activation affect rate constant how does temperature affect the rate of a
problem- consider a solution containing 0100 m fluoride ion and 0126 m hydrogen fluoride the concentration of hydrogen
problem- the following reaction takes place in acidic conditions under rigorous heating complete the reaction mechanism
problem- a buffer with a ph of 405 contains 021 m of sodium benzoate and 030 m of benzoic acid what is the
problem- what are the concentrations of acetic acid pka 476 and acetate in a buffer solution of 010 m at ph 45 enter
problem- you have 425 ml of an 033 m acetic acid solution what volume v of 180 m naoh solution must you add in order to
problem- calculate the molarity of a solution made by adding 313 ml of concentrated potassium hydroxide 345 by mass
problem- if the weight limit for a roof is 55 lbsft2 how many inches of snow can be on the roof before it must be
problem- a green roof is designed to hold up to 08 inches of precipitation before water starts to runoff for a building
problem- use density of silvers 10500 gcm3 to calculate the volume occupied by 1000 mole of silver ag in the following
problem- naturally occurring mg exists as isotopes 24-mg 25-mg and 26-mg given the information in the following table
problem- a certain weak base has a kb of 830 10-7 what concentration of this base will produce a ph of 1021explicate
problem- a mixture consisting of 1000 mol h2og and 1000 mol cog is placed in a 1000-l reaction vessel at 800 k at
problem- can benzin 05g and 005 benzoin i require to isolate benzil in pure form could you accomplish this using an
problem- there are two stable isotopes of copper their masses are 629296 amu and 649278 amu if the average atomic mass
problem- write electron configurations for carbon and nitrogen briefly explain why the electron affinities of these two
problem- how do you know whether to use pcc or chromic acid for oxidizing a secondary alcohol i know they both reduce
problem- carbon monoxide and water vapor each at 200 torr were introduced into a 250-ml container when the mixture
problem- using the assumption that o equals the number of inner-shell electrons calculate a value for the effective