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the ionization constant of lactic acid ch3chohco2h is 136x10-4 if 200 g of lactic acid is used to make a solution with
the amount of charge that passes through the filament of a certain lightbulb in 200 s is 167ca find the current in the
a spaceship moving away from earth at 067 c fires a particle beam toward earth with speed 074 c relative to the ship at
the vapor pressure of water at 20 degrees celcius is 175 mmhg what is the vapor pressure of water over a solution
a piece of copper wire is formed into a single circular loop of radius 12 cm a magnetic field is oriented parallel to
suppose that 090g of water condenses on a 800g block of iron that is intitially at 24 degrees celsius if the heat
which one of the following aqueous solutions will have the lowest boiling point temperature explain or show workall
a square coil of wire of side 300 cm is placed in a uniform magnetic field of magnitude 250 t directed into the page as
a vertical solid-steel post 260 cm in diameter and 253 m long is required to support a load of 8200 kg you may ignore
1 a piece of sodium weighing 290g is placed in 500 ml of oil the volume of oil now reads 749 ml what is the density of
a bimetalic strip consists of a thinstip of brass alphabrass19x106co-1 riveted to a thin strip of steel
a small current loop of area a00008m2 and moment of inertia i69e-07kgm2 carries a current i00039a with its magnetic
a person uses 750 kcal on a long walk calculate the energy used for the walk in each of the following energy unitsa
five objects each of mass m are equally spaced on the arc of a semicircle of radius r as shown in the figure belowsee
what mass of solid aluminum hydroxide can be produced when 500 ml of 0288 m alno33 is added to 2000 ml of 0159 m
two waves traveling on a string in the same direction both have a frequency of 141 hz a wavelength of 43 m and an
in a certain hypothetical experiment the initial concentration of reactant is 100 and its rate constant is 00150 it
a football kicker can give the ball an initial speed of 24 ms he is 54 m from the goalpost which has a crossbar 346 m
could a compound contain both ionic and covalent bonding does caso4 have both ionic and
a rock is shot vertically upward from the edge of the top of a tall building the rock reaches its maximum height above
a researcher would like to perform an experiment in a zero magnetic field which means that the field of the earth must
acetonitrile ch3cn is a polar organic solvent that dissolves a wide range of solutes including many salts the density
how many moles of oxygen are generated during the thermal decomposition of 775 g of lead iv
attached to each end of a thin steel rod of length 110 m and mass 600 kg is a small ball of mass 102 kg the rod is
two uniform solid spheres have the same mass of 215 kg but one has a radius of 0213 m while the other has a radius of