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hydrochloric acid 580ml of 0235m is added to 2120ml of 00567m baoh2 solution what is the concentration of the excess h
a particle of mass 6kg traveling with speed 4ms in the direction 30 degrees s of w on a horizontal plane suddenly
the saturated solutions of caoh2 contain a white solid which is removed by filtering what is this solid if that solid
you carry a 70 kg bag of groceries across a 53 m room where the rooms flat floor is a 12 m above the ground how much
a solution is prepared by dissolving 176g ammonium sulfatenh42so4 molar mass 13217gmol in enough water to make 1210ml
a brand x antacid tablet was analyzed by a student following the procedure used in this experiment the stdent dissolved
for a 670kg of magnesium-lead alloy is it possible to have the masses of primary alpha symbol and total alpha symbol of
a photographer in a helicopter ascending vertically at a constant rate of 105 accidentally drops a camera out the
you throw a stone vertically upward with an initial speed of 58 from a third-story office windowif the window is 12
an ecobotanist separates the components of a tropical bark extract by chromatography she discovers a large proportion
a bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a tris buffer
when 089 g zncl2 is dissolved in 280 ml of 0150 m nacn what are zn2 zncn42- and cn- kf of zncn42- 42 multiplied by
a carnot engine does work of 150 j per cycle the engine operates between two reservoirs at 20 degree c and 500 degree
find the ph and volume ml of 0447 m hno3 needed to reach the equivalence points in titrations of each of the followinga
a cannonball is fired from a canon at an angle of 30 degrees to the horizontalthe cannonballs initial velocity is 40
given a stock solution of a food dye having a concentration of 10 x 10-5 and an absorbance of 0700 if a new solution is
a reaction is a---gtp with the a reaction order of 23 with respect to a what is the integrated rate law expression for
a pilot of mass 70kg pulls out of a dive following a circular path of radius 850m and at a speed of 200ms if we
write a balanced net ionic equation to show why the solubility of mgf2s increases in the presence of a strong acid and
if a student weighed out a 500 mg tablet of vitamin c measured to the nearest 0001g and recovered 0254g of ascorbic
a 195 g sample of ascorbic acid is titrated with a 089 m red dye what volume of red dye is required to reach the
a car travels a distance of 50kmhr it then travels an additional distance of 60km in 1 hour what is the average speed
you are twirling a tennis ball on a string in the vertical direction at a constant speed the radius of the circle is
how long does it take in minutes for light to reach earth from the sun a distance of 1596 x 108
a bullet with a mass of 40 g and a speed of 650 ms is fired at a block of wood with a mass of 97times102 kg the block