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a cylinder with a piston contains 0300 moles of oxygen at 220times105 pa and 340 k the oxygen may be treated as an
the rate of the reaction of methyl ethyl acetate with hydroxide to form acetate ion and ethanol as shown in the
the rate of a first order reaction is followed by spectroscopy monitoring the absorption of a colored reactant the
at some point between the earth and the sun the net gravitational force is zero how far is this point from the center
for co2 one of the major absorptions of ir radiation occurs at the wavenumber of 2350cm-1 what is the energy
sam heaves a shot with weight 16-lb straight upward giving it a constant upward acceleration from rest of 457 ms2 for a
prepare a molecular orbital energy level diagram for no showing clearly how the atomic orbitals interact to form mosa
what is the normality of a solution of koh if 4518 ml are required to neutralize 03 g pure oxalic
two identical steel balls each of mass 49 kg are suspended from strings of length 23 cm so that they touch when in
stock solution a is prepared by dissolving 1651 mg of ferrous ammonium sulfate in water and diluting to volume in a
a supertanker filled with oil has a total mass of 104 109 kg if the dimensions of the ship are those of a rectangular
three common hydrocarbons that contain four carbons are listed here along with their standard enthalpies of
how many watts must a fluorescent bulb 25 efficiency use to produce the same amount of light as a 100-watt incandescent
if a 020 kg ball falling with a velocity of 30 ms makes a perfectly elastic collision with the floor how much impulse
it is often useful to be able to anticipate without doing a detailed calulation whether an increase in temperature will
a solid mixture consists of 340g of kno3 and 60g of k2so4 the mixture is added to 1300g of water this problem includes
a 900- kg car collides with a 1200- kg car that was initially at rest at the origin of an x-y coordinate system after
an acqueous solution of kl has a freezing point of -180 c and an osmotic pressure of 260 atm at 250c assume kl
coniine a toxic substance isolated from a poison hemlock contains only carbon hydrogen and nitrogen combustion analysis
you have a 200-ohm resistor a 0400-h inductor and a 600-uf capacitor suppose you make a series circuit with the
the order of skunks is caused by chemical compounds called thiols these compounds of which butanethiolc4h10s is a
two sounds have intensities of 210times10-8 and 870times10-4 wm2 respectively what is the magnitude of the sound level
glass cuvette used for precision measurements in a spectrometer are marked so that they always have the same
a rescue plane spots a survivor 182 m directly below and releases an emergency kit with a parachute if the package
the vapor pressure of water at 300 degree celsius is 3182mmhg a portion of mannitol c6h14o6 non-volatile is added to