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determine a set of proteins that have masses of 15 22 50 and 75 kda utilizing the diagram below decide which of the
the vapor pressure of a liquid double while the temperature is raised from 90 degrees celsius to 100 degrees celsius
nacl is dissolved in two beakers one beaker contains pentane c5h12 as well as one beaker contains pentanol c5h11oha in
survival of trout needs water in which the oxygen concentration is greater than 5 ppm a 100-ml sample of lake water was
dissolved oxygen in water will oxidize an alkaline suspension of mnoh2 to mnoh3 o2g 4mnoh2 2h2o 4mnoh3 upon being
uric acid dissociates as exposed in the figure at the right with a pka of 580 as well as can be treated as a simple
a 250-ml sample of household bleach was diluted to 500ml in a volumetric flask an unmeasured surplus of ki was added to
the amount of ascorbic acid c6h8o6 in orange juice was computed by oxidizing the ascorbic acid to dehydroascorbic acid
a monophonic acid ha is dissolved in water the equilibrium concentrations of the reactants as well as products are ha
in a hurry to complete the experiment joseph failed to calibrate the spectrophotometer as a result all absorbance
depict the organic product of the acid-base reaction between the species shown below two equivalents of -oh are
compute the volume of 020 m naoh required bringing the ph of 20ml of 5 acetic acid to 474 the pka of acetic
a phosphate buffer solution contains 008 m k2hpo4 and 012 m kh2po4 pka values for h3po4 are 2 68 and 122 compute the
the uranium minerals found in nature should be refined and enhanced in 235u before the uranium can be utilized as a
a mixture of acetone as well as toluene is boiled at 80 degrees c and at 760 mmhg explain what is the ratio of acetone
explain the boiling point of benzene is 81 degrees celsius define what is the vapor pressure at the
if lambda subzero is 266e 05 compute alpha if the conductivity of a 723 e-03 m mgso4 is 1255
compute why you must have a liquid flowing back through the fractionating column in order to get the separation of the
the ca content of a powdered mineral sample was examined four times by two methods believed to have similar precision
an unknown metal is found to be arranged in an fcc structure the density of the metal is 891gcm3 and the edge cell
consider the titration of potassium acid phthalate khp with naoh if 04278g khp needed 2286ml of naoh to reach the
in a set of blood samples taken from a patient at different time the cholesterol level was tested and the final result
a mixture of sodium salts may enclose one or more of the anions studied in this experiment all of the salts are readily
specified the ka1 and ka2 for carbonic acid are 44510-7 and 46910-11 respectively find out the alpha value for hco3- at
a 01000 m naoh solution was employed to titrate a 2500-ml solution that contains 01000 m hcl and 00500 m hoac find out