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an aqueous solution at 18c contains h2so4 and h20 and the mixture has a specific gravity of 1382 assuming that the
a walkway suspended across a hotel lobby is supported atnumerous points along its edges by a vertical cable above
for the iodination of acetone to determine the order with respect to each reactant the method of initial rates was used
a solution is to be prepared with a sodium ion concentration of 0487 moll what mass of sodium phosphate g is needed to
an automobilecrankshaft transfers energy from the engine to the axle at the rateof 200 hp 1492 kw when rotating at a
a a very powerful vacuum cleaner has a hose 295 cm in diameter with no nozzle on the hose what is the weight of the
does the fact that two compounds have different boiling points mean that they definitely can be separated by gas
a 74 kg man in a 60 kg chair tilts back so that all the weight isbalanced on two legs of the chair assume that each leg
calculate g for the reaction aa--gt p q at 37 degrees c when the equilibrium concentrations are a1 microm q2 mm p4 mm
superman attempts to drink water through a very longstraw with his great strenth he achieves maximum possible
ethylene diamine bp 116 c and water form a maximum boiling azeotrope bp 120 c the azeotropic mixture is 80 in ethylene
the four tires of an automobile are inflated to a gaugepressure of 23 105 paeach tire has an area of 0024m2 in contact
a high-speed lifting mechanism supports a 875 kg object with a steel cable 230 m long and 400 cm2 incross-sectional
a first order reaction has an activation energy of 724 kjmol and a frequency factor arrhenius constant of 178 x 1013
a boat is traveling upstream at 14 kmh with respect to thewater of a river the water itself is flowing at 9 kmh
calculate the molarity and the molality of reagent grade nitric acid the specific gravity of this solution is 140 and
a rotating fan completes 1200 revolutions every minuteconsider a point at the tip of the blade at a radius of015ma
columns in the periodic table are called groups and the rows are called periods notice that the groups are labeled 1 to
a 48 g piece of ice at 00 degree c is placed in an insulated calorimeter of negligible heat capacity containing 100 g
a 200 kg floodlight in a park is supported at the end of ahorizontal beam of negligible mass that is hinged to a pole
derive an expression for work done in reversible isothermal expansion of a gas obeying van der waals equation calculate
a storage tank has a diameter of 80 ft a height of 25 feet andcontains oil to a height of 15 ft the suction pumps
a sample consisting of 100 mol of a van der waals gas is compressed from 200 dm3 to 100 dm3 at 300 k in the process 202
a uniform electric field of magnitude75times105 nc points in the positive xdirectiona find the change in electric
exactly 75 ml of a 03132m solution of na2so3 were treated with 150 ml of 04025 m hclo4 and boiled to remove so2 the