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20 ml of 40 acetone 10ml 10 m hcl 10 ml 00050 m i2 10 ml h2owhat is the initial concentration of acetone h and i2 in
how do you determine what region the electromagnetic spectrum lamda 867x10-7 m corresponds to uv visible or
the 650 nm590 nm intensity ratio for tetraphenylchlorin is 7 while the ratio for tetraphenyl porphyrin is 45 predict
if the yellow molecules have a molecular mass of 50 rm amu what is the molecular mass of the blue
an atom of the element of manosium has energy levels 12 and 3 with sucessively higher energy when the atom makes the
starting with solid sodium chloride houw would you make one liter of 2000 ppm sodium chloride
starting with solid sodium chloride how would you make one liter of 2000 ppm sodium chloride
air is flowing through a duct the atmospheric pressure is 730 mm hg what is the absolute pressure of the air in inches
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how much will the temp change when 740grams of iron stainless steel aluminum absorbs 1210 cal of heat
if you mix 50ml of 01m tris acid with 60ml of 02m tris base what will be the resulting
when a solution of hydrogen peroxide h2o2 is put on a cut bubbles producing water and oxygen gas according to the
1 determine hvap for a compound that has a measured vapor pressure of 243 torr at 273 k and 135 torr at 325 k2
a 40-year-old manager at a prominent legal firm in la experiences abdominal pain post lunch he goes to the restroom a
sulfur-38 has an atomic mass of 380 and a half-life of 287 h how long does it take for 9999 of a sample of sulfur-38 to
because of its semiconducting properties cds is sometimes used in electronic devices the band gap energy for cds is 240
how many moles of solute particles are present when 025 moles of caso4 is dissolved in
to prepare a solution of nacl you weigh out 2634plusmn002g and dissolve it in a volumetric flask whose volume is
as part of an internship in a petrochemical company you are given the task of identifying the fractions coming off the
a bottle at 210c contains an ideal gas at a pressure of 1264 times 103 pa the rubber stopper closing the bottle is
as early as 1938 the use of naoh was sugested as a means of removing co2 from the cabin of a spacecraft according to
word equations and balanced chemical equations for the burning of carbon and burning of
write the balanced equations for bothof the following reactions and identify the type of reaction for eachpotassium
an adiabatic piston-cylinder device initially contains 1l of air at 10 atm and 25degc consider the expansion of air to
a small amount of the radioactive isotope pb-212 was mixed with a small quantity of a non-radioactive lead salt