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a voltaic cell consists of an mnmn2 half-cell and a pbpb2 half-cell calculate pb2 when mn2 is 27 m and ecell 037
a vector has an x-component of 210units and a y-component of 500 units find the magnitude and direction of the
a stone is thrown upwards from the edge of a cliff 18m high it just misses the cliiff on the way down and hits the
calculate the standard emf of a cell that uses the mgmg2 and cucu2 half-cell reactions at
a ball is thrown vertically upward with a speed of 120 msa how high does it risemb how long does it take to reach its
part a a 055kg bullfrog is sitting at rest on a level log how large is the normal force of the log on the bullfrogpart
trimethylamine c3h9n is a weak base pkb 419 with a fishy odour in a titration of 2500 ml of aqueous trimethylamine
a bullet is fired through a board 50 cm thick in such a way that the bullets line of motion is perpendicular to the
the delta g for the freezing of at -10 c is -210 jmo and the heat of fusion of ice at this temperature is 5610 jmol
a-318 a b-2a is flying at 43000 ft in standard day conditions at 400 ktas the mean chord length is 396 fta find the
consider the bonding in the following using valence bond theory for which would dissh be the smallesta bah2b cah2c
a 50 kg box starting from rest slides down a 50 m high frictionless hill then across a 20 m wide horizontal surface and
time standards are now based on atomic clocks a promising second standard is based on pulsars which are rotating
which of the following would break apart into free radicals an atom with one unpaired electron when a photon promotes
a plane is sitting on a runway awaiting takeoff on an adjacent parallel runway another plane lands and passes the
an aqueous cacl2 solution has a vapor pressure of 808 mmhg at 50c the vapor pressure of pure water at this temperature
a 110 g copper bowl contains 130 g of water both at 240degc a very hot 370 g copper cylinder is dropped into the water
you make a capacitor by cutting the 145 cm--diameter bottoms out of two aluminum pie plates separating them by 330mm
the plates of a parallel-plate capacitor have a separation of 368mm and each has an area of 158cm2 each plate carries
provide the structure of a d-b-talopyranose- d-b-talopyranose disaccharide that cannot undergo
a particle with a charge of 450nc is in a uniform electric field directed to the left it is released from rest and
a sample gas at standard prssure is heated from 20c to 200c if the volume remains constant what is the fimal pressure
a 20l closed flask contains 050 g n2 gas at a temperature of 25degc calculate the pressure in atm inside the
calculate the percentage of empty space in 1 mole of water at 25 c the volume of a molecule of water can be taken as