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in a given diffusion apparatus 150ml of hbr gas diffused in 10min in the same apparatus and under the same conditions
a chemist burns 08615 g of graphite a form of carbon in a new bomb calorimeter and co2 forms if 3935 kj of heat is
a stretched string fixed at each end has a mass of 490 g and a length of 860 m the tension in the string is 490 na
assume that while extracting material from gallstones you have isolated a compound that you suspect is cholesterol but
the wave function of a standing wave on a string fixed at both ends is given by yxt002sin03xcos25t where y and x are in
a tube is partially and vertically inserted into a container of water two sequential resonant frequencies are heard
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while standing in a low tunnel you push up on the ceiling with a force of 100n your mass is 70kg what force does the
you wish to launch a satellite that will remain above the same spot on earths surface this means the satellite must
a 65 kg man is on ice skates the skates blades have a total contact area of 20 cm2 how much pressure does the man exert
apollo orbit around the moon was adjusted to an average orbit of 111km radius of the moon is 1785 km and the mass of
we did an experiment in class today heating a metal object over a bunsen burner submerging it in water and recording
an aqueous solution containing 358 g of an unknown molecular nonelectrolyte compound in 1567g of water was found to
a person has been accussed of severely injuring another person in a barroom brawl the accused was arrested and samples
organic chemists when making a new solid compound often first try ethanol as a recrystallizing solvent if soluble at
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a car accelerates uniformly from rest and reaches a speed of229ms in895s assume the diameter of a tire is583cmwhat is
a golfer hits a shot to a green that is elevated 330 m above the point where the ball is struck the ball leaves the
14312g of magnesium nitrate were dissolved in water to produce 650ml of solutioncalculatea the formual concentration of
a ball is rolled off a table that is 0481 m above the floor the ball is rolling with a velocity of 18 ms as it goes off
calculate the volume of 0150 m koh necessary to titrate 00246 mole of a monoprotic acid to a phenolphthalein end-point
a 827-kn car is travelling at 731 mph when the driver decides to exit the freeway by going up a ramp after coasting 418
how many grams of acetylsalicylic acid aspirin c9h8o4 are present in 132 x 10-2 mol of
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