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a 1000-ml buffer solution is 0175 m in hclo and 0150 m in naclo what is the ph after addition of 1500 mg of
a 0003552 mol sample of an organic compound was burned in oxygen in a bomb calorimeter the temperature of the
for the reaction below the thermodynamic equilibrium constant isnbspknbsp 000192 at 35 degcnh4co2nh2s rarr 2 nh3g
the heat of combustion of ethanol c2h5oh is -1367 kjmol how much heat will be given off when 920 g of ethanol is
draw the molecule by placing atoms on the grid and connecting them with bonds include all lone pairs of
if a system has 35 x 102 kcal of work done to it and releases 500 x102 kj of heat into its surroundings what is the
part 1 calculate the acidity constant of benzoic acid inwaterat298kifgf forc6h5co-2aqis -2692kjmolandgf forc6h5coohaq
a buffer solution of volume 100 ml is 0151 m na2hpo4aq and 0185 m kh2po4aq what is the change in ph resulting from the
how do you find the value of ka for nahso4 if you are given the concentration of h and the initial molar concentration
a lake has been acidified to a ph ofnbsp4046 if the lake has a volume ofnbsp107times105nbspcubic meters what mass in kg
as a reaction occurs the system loses 1150 j of heat to the surroundings a piston moves downward as the gases react to
1 what effect did the addition of the enzyme lactase have on the fermentation rate of lactose why2 cellulosic biofuels
can someone answer the question shown below thank youdraw a graph of enzyme activity vs temperaturenbspthis
a man heterozygous for black hair and brown eyes both traits dominant has married a woman who is blue eyed and blond
g-protein coupled receptors are the most common class of membrane receptors although each receptor may interact with a
provide an example where knowledge of evolution has informed the field of modern medicine be sure to include specific
select an aspect of evolution that has been subjected to the scientific method detail the steps of the scientific
how are modern humans distinct from paranthropus robustus was p robustus a human why or why
what is the role of the bacterial capsule in evasion of the immune
explain the difference between between adaptation natural selection and
describe one specific example of a genetically modified organism gmo this may be a plant or an animal and may currently
the reaction for photosynthesis can be represented as follows6 co2 6 h2o ---gt c6h12o6 6 o21 compare the structure of
explain the significance of a variable number tandem repeat in relation to identification of an individualwhat does it
1 what was the direction of osmosis in the beaker labeled 100 distilled water did the egg in this beaker
the process of dna replication creates a particular problem for replicating the ends of linear chromosomesa describe