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exactly 5000ml of a 04230m solution of na3po4 was mixed with 10000ml of 05151m hgno3 what mass of solid hg3po4 was
in 2000 nasa placed a small 240 kg satellite in orbit 5 km above a 1016 kg spherical asteroid of radius 88 kma
what is the buggering range of tris what is the buffering capacity of 25m tris solution 25mm tris solution
determine the repeat distance linear density and packing fraction for bcc lithium which has a lattice parameter of
there are two answers required for this question an engine operates between temperatures of 280 k and 700 k at 620 of
why is it essential to wash the recrystallized material with cold not warm or hot solvent what might occur if the wash
an aluminum container which has a mass of 0350 kg holds 070 kg of water the water and container are both at 450degc ice
an ambulance is generating a siren sound at a frequency of 1800 hz the velocity of sound is 3350 ms the observer is
why is it important to use a minimum volume of hot solvent to dissolve an impure sample during recrystallization and
a 150 ww nicl2 12961 gmol solution has a density of 1149 gml calculate the grams of nicl2 contained in each liter of
an incompressible fluid is flowing through a pipe with a constriction the pipe is on an incline with an angle of 300
you have a 35 m high platform that is level on top a spring launcher is located on the top so that it launches objects
a what advantages does ligroin have over n-pentane as a recrystallization solventb what advantages foes ethanol have
a frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal it is 32 meters long and 16
a 160 kg ball and a 720 kg ball are connected by an 800 cm long massless rigid rod the structure rotates about its
why is it advisable to run a mixed melting point determination on samples of two different compositions before
a 1500kg satellite is placed in an orbit 8000km above the surface of the eartha what is the gravitational acceleration
a student suspected that an unknown was undergoing a chemical change at its melting point suggest a simple method for
a car traveling 93 is 170 behind a truck traveling 74 how long will it take the car to reach the
melting-point ranges are determined in glass apparatus this means that glass constitutes an impurity in the system why
a rocket is fired straight up and accelerates upward at 12 ms2 for 18 seconds the rocket then runs out of fuel and
a 2500 ml sample of sulfuric acid h2so4 required 2126 ml of 0124 ml n naoh to titrare it to the endpointa calculate the
a steam-powered electrical generator operates at a boiler temperature of 220 c and exhausts to a cooling reservoir at
an isotonic solution contains 087 by mass per volume calculate the percent mass per volume for isotonic solutions
a log is floating on swiftly moving water a stone is dropped from rest from a 720-m-high bridge and lands on the log as