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compute the volume in ml of a 0410 m koh solution that must be added to 4250 g of hepes mw238306 gmol pka 756 to give
explain what is the new concentration of fe3 if 300ml of 000200 m ironiii nitrate is diluted to a total volume of
a colored solution gives a reading of 392 transmittance while determined in a calibrated spectrophotometer compute the
presume you mix 250ml of 1 m hypochlorous acid hocl with 250ml of water compute the ph of the resulting solution i got
presuming that the smallest measurable wavelength in an experiment is 0990 fm femtometers explain what is the maximum
explain which of the subsequent three compounds is the most likely to be amenable to purification by sublimation-
a 5000-g iron bar at 212 degrees celsius is placed in 20-l if water at 240 degrees celsius explain what will be the
the subsequent molecule contains two different nitrogen longe pairs one of which is considerably more basic than the
a 1543 g sample containing a sulfate ion was treated with barium chloride reagent and 02243 g of barium sulfate was
gaseous br2 decomposes at 573 k br2g ltgt 2 brg in a 126-l flask 0086 mol of br2 are placed and heated to 573 k
the heat capacity of hydrgon may be represented by cp 1554 00022 t jk mol compute the entropy changes for the system
a first-order homogeneous reaction of a going to 3b is carried out in a constant pressure batch reactor it is found
a mixture of 0074 mole h2 and 0151 mol ch4 is at equilibrium with solid carbon in a 1 liter container if the equation
a 08800 g sample of a carbocyli acid is burned in oxygen producing 1569 g of co2 as well as 06459 g of h2o find out the
the value of kc for the equilibrium n2o4g rarr 2no2g is 40x107 if the initial concentration of n2o4 is 075 m explain
within a capped carbon nanotube a partical is essentially a particle in a box free to move in one dimension until it
explain what is the extension value of l of a 1d-box containing an electron if the wave number of the transition from
an 515g sample of naphthalene c10h8 is dissolved in 447 g of an unknown solvent the normal freezing point of the
several people think salt nacl is added to water to augment the boiling point so pasta will cook faster explain how
a clinic took temperature readings of 250 flu patients over a weekend as well as discovered the temperature
2 d of sample containing na2co3 and nahco3 loses 0248g when heated at 300 degree celsius them at which nahco2
one mole of an ideal gas cp7r2 in a closed pistoncylinder is compressed from t1100k p101 mpa to pf07 mpa by the
depict the structures of the cycloalkanes with molecular formula c6h12 that have a 6-membered ringbullutilize the
three moles of an ideal gas with temperature independent cp72r cv52r is contained in a horizontal pistoncylinder
in proteins the amino acid histidine his plays an significant role in many biological reactions the pka for the