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suppose a 400 l nickel reaction container filled with 00051 m h2 is connected to a 400 l container filled with 0078 m
you have a helium balloon at 100atm and 25 degrees c you want to make a hot air balloon with the same volume and same
a sound wave frequency 256hz is propagating in air at 343ms how far apart are two points on the wave that differ in
at a given instant in time a traveling em wave is noted to have its maximum magnetic field pointing west and its
methane ch4 gas flows into a combustion chamber at a rate of 200lmin at 150atm and ambient temperature air is added to
an organic compound contains c h n and o combustion of 01023g of the compound in excess oxygen yielded 02766g of co2
a grinding wheel of radius 0280 m rotating on a frictionless axle is brought to rest by applying a constant friction
what is the vapor pressure of cs2in mmhg at 280 degrees celcius carbon disulfide cs2 has a pvap 100mm at -51 degrees
an air-track glider attached to a spring oscillates between the 120 cm mark and the 550 cm mark on the track the glider
equal volume of 0220 m agno3 and 0140 m zncl2 solution are mixed calculate the equilibrium concentration of ag and
a 0900 kg block is attached to a spring with spring constant 18 nm while the block is sitting at rest a student hits it
how many hydrogen atoms are in an unbranched alkene with one double bond and 3 carbon
a 798 kg satellite is in a circular orbit about the earth at a height above the earth equal to the earths mean radiusa
1 ideal gasconsider n o2 molecules in a container of volume v at a pressure of p1 atm and atemperature of t298ka
the ammoniaammonium buffer system is used to optimize polymerase chain reactions pcr used in dna studies the
a 20 cm-long solenoid carrying a current of 8ma is oriented with its axis parallel to earths magnetic field whose
when a charge with q2e moves under the influence of the electric force and an external force through a potential
800times10-3mol of hbr are dissolved in water to make 140l of solution what is the concentration of hydroxide ionsoh-
a point charge of magnitude q is at the center of a cube with sides of length la what is the electric flux through each
chemists studied the formation of phosgene by sealing 081 atm of carbon monoxide and 137 atm of chlorine in a reactor
a person on a safari wants to take a photograph of a hippopotamus from a distance of 788 m the animal is 490 m long and
concentrated sulfuric acid is 98 by mass h2so4 with the remaining mass being water what is the molar concentration ie
kim says that she was less than 10 ft away from the president when she took a picture of him with her 53-mm focal
an ammoniaammonium buffer solution contains 019m nh3 and 061m nh4 the kb value of ammonia is 18 x 10-5 calculate the
calculate go in j for 1 moles of electrons in each half-reaction and a standard potential of 027