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how many grams of sodium formate nacho2 would have to be dissolved in 14 l of 013 m formic acid pka 374 to make the
at one point in the room the sound intensity is 35 10-16wm2 if you move twice the distance away find the sound
a helicopter stays aloft by pushing large quantities of air downward every second what mass of air must be pushed
a rod of mass m and length l is hanging from one end on africtionless axis we let the rod swing from an angle thetaat
what is the ph of a solution prepared by mixing exactly 550 ml of 0200 m hc2h3o2 with 200 ml of 0400 m koh ka for
a car moves from a point located 260 m from the origin and at anangle of 350 degrees from the x-axis to a point located
what is the ph of a 031 m solution of arsenic acid h3aso4 in this solution what are the concentrations of h2aso4- and
a guitar string 250 meters long has a mass ofnbsp 0458 grams if a tension of 276n is put on the string what will the
you try to remove olive oil from a glassby blowing across the top of a vertical straw immersed in theolive oil what is
find the magnitude of the net force on arigid square loop of wire of side length l 636 cm the center of the loop is
how many grams of sodium formate nacho2 would have to be dissolved in 12 l of 039 m formic acid pka 374 to make the
a block whose mass m is 680 kg is fastened to a spring whosespring constant k is 65 nm the block is pulled a distance x
the water skier is at an angle of 35o with respectto the center line of the boat and is being pulled at a constantspeed
by how much will the ph change if 250 ml of 020 m naoh is added to 0500 l of a buffer that contains 015 m hc2h3o2 ka
the electron beam in a cathode-ray tube is accelerated through apotential difference of 290 v the electrons then pass
lead ii iodide pb2 is an ionic compound with a solubility product constant ksp of 79 x 10-9 calculate the solubility of
the earth orbits the sun once a year 316 x 107 s in a nearlycircular orbit of radius 150 x 1011 m with respect to the
after a plant or animal dies its 14c content decreaseswith a half-life of 5730 years if an archaeologist finds
a diffraction grating has 15000 lines per inch what angle of deflection from the incident beam would you observe for
a mixture of co2 and n2 gases has an experiment density of 21922 molm3 at t225k and pressure 68759 mpa and z167661 what
at the suns surface the gravitational force between the sunand a 500 kg mass of hot gas has a magnitude of 1370 n
a block rests on a horizontal frictionless surface a string is attached to the block and is pulled with a force of 450
a certain substance has a mass per mole of 39 gmol when 306 jis added as heat to a 280 g sample ofthis material its
1 a draw s-2-chloropentaneb show the transition state and product that result when it is attacked by sodium hydroxide
a thin film of oil covers the surface of a glass of water white light is incident on the top surface a red spot is