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a typical vitamin c tablet containing pure ascorbic acid h2c6h6o6 weighs 500 mg one vitamin c tablet is dissolved in
calculate the ph of the solution that results from each of the following mixtures1600 ml of 27 m hf with 220 ml of 32
calculate the following when 0250 l of 0250 m agno3 solution is mixed with 0350 l of 0300 m na2co3 solution ksp for
we were given three ways to make an ammoniaammonium buffer solution one way was to add solid nh4cl to aqueous nh3 this
during normal grain growth grain boundaries tend to move toward the center of curvature so that small grains get
a qunatity of 300 grams of copper was deposited from a cuso4 solution by passing a current of 300 amperes through a
a certain centrifuge produces a centripetal acceleration of magnitude exactly 1220g at a point 117 cm from the axis of
you throw a ball straight down from an apartment balcony to the ground below the ball has an initial velocity of 495 ms
a solution containing copperi nickel and zinc cyanide complexes was electrolyzed and a deposit of 175 grams was
a paratrooper is initially falling downward at a speed of 330 ms before her parachute opens when it opens she
when a 500 l flask containing 135 atm of gas a is joined with a 200 l flask containing 100 atm of gas b and the
a boy exploring a cave drops a rock into a dark crevasse he hears the rock strike the bottom 101 s after dropping it
a 63 kg astronaut floating at rest in space outside a space capsule throws his 050 kg hammer such that it moves with a
calculate w in kj when 415 g iron iii oxide mm 1597 gmol reacts with excess carbon to produce carbon dioxide gas at
a m 26 kg object moving at v 16 ms collides with a stationary 20 kg object as shown in fig 638 if the collision is
what must be the ph of a buffered solution saturated with h2s h2s010m be in order to precipitate pbs leaving pb2110-6m
draw the organic products of the reaction of p-methylbenzoic acid with lialh4 then h3o in the window belowif no new
write the proton transfer equilibrium for the following and identify the conjugate acid base pairsa n2h5b
assuming that a spacecraft lands on an asteroid and bores a hole perpendicular to its surface it is noticed that the
s-2-butanol reacts with potassium dichromate k2cro4 in aqueous sulfuric acid to give ac4h8o treatment of a with
a saturated solution of leadii chloride pbcl2 was prepared by dissolving solid in water the concentration of pb2 ion
the kp for the production of phosgene is 180 if one mole each of co and cl2 are mixed at the total pressure of 1 atm
estimate the number of drops of water in all the oceans on earth you will need to use the facts that the oceans cover
consider the following reaction in a closed reaction flask if 150 atm of gas a is allowed to react with 0500 atm of gas
how many milliliters of a 040 wv solution of nalorphine must be injected to obtain a dose of