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problem- you need to prepare 100 ml of a ph400 buffer solution using 100 m benzoic acid pka 420 and 160 m sodium
problem- for the series of alkali halides calculate radius ratio for each which in the series exhibits structures not
problem- in the photochemical decomposition of a certain cmpd light intensity of 54 x 10-6 einsteins s-1 was employed
problem- 10ml of a solution consisting of 240ml 10m naoac 10ml 10m hoac is mixed with 40ml of water the ph is 508find
problem- muscle contracts by sliding myosin filaments relative to actin filaments the myosin head group hydrolyzes atp
problem- calculate the ph for each of the following cases in the titration of 500 ml of 0140m hcloaq with 0140m kohaq
problem- part a what volume of 100 m naoh is needed to prepare a buffer with ph of 779 using 3152 g of trishclcorrect
problem- a heat lamp produces 160mw of yellow light in 550 h the laser emits 1431020 photons what is the wavelength of
problem- in order to make 200ml of a buffer with ph-500 calculate the volumes of 020m acetic acid 020m sodium acetate
problem- the quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing
problem- estimate the total work that can be obtained by combusting butane c4h10 at 2700k assume liquid water is
problem- part b the volume of added acid required to reach the equivalence point part c the ph at 40ml of added acid
problem- calculate the volumes of 020m acetic acid 020m sodium acetate and pure water needed to make 2000 ml of a
problem- suppose you dissolve a commercial aspirin tablet in enough water to create 1000 ml of solution solution a you
problem- there are two of four key reasons why aldehydes are more reactive than ketones what are these two reasons
problem- why is the protonation of carboxylic acid happening on lone pair electrons of carbonyl oxygen co instead of oh
problem- what is the concentration of a solution in m which contains 571g of aluminum nitrate in 612ml of
problem- given the enthalpy change and entropy change which of the following processes will be spontaneousdh 5000 j ds
make up a laboratory solution of 010 molar h2so4 from concentrated 960 h2so4 you look up the specific gravity of 960
a calculate the gibbs energy entropy and enthalpy of mixing 1 mol c6h14hexane is mixed with 1 mol c7 h16heptane at
calculate the gibbs energyentropy and enthalpy of mixing when 1 mole c6h14hexane is mixed wth 1 mol
question- a first order reaction has a rate constant of 75 x10-3 s what is the time for the reaction to be 60
question- part 1 what is the density of he at stp why do helium-filled balloons rise in airpart 2 if 160g of o2 and 22g
question- a mixture initially contains a b and c in the following concentrations a 0400m b 130m and c 0300m the