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one mole of potassium dichromate completely oxidises the following number of moles of ferrous sulphate in acidic
a ball of mass 15 kg is thrown upward it leaves the throwers hand with a velocity of 10 ms the net impulse on the ball
the reaction that produces the water gas mixture is as follows cs h2og cog h2g this reaction requires an input of
calculate the values of q w delta u and delta h for the reversible adiabatic expansion of 1 mole of a monoatomic ideal
a conducting bar with a mass of 0155 kg and a length of 160 cm is suspended touching two vertical electrical contacts
use the following experimental titration data to calculate the unknown concentration and ph of the acidobservationthe
an atom in a solid vibrates at 16thz with amplitude 13pm find the atoms maximum acceleration then if its a carbon atom
a 5g packet of an effervescing stomach antiacid contains 268 g of calcium hydroxide to neutralize stomach acid what
calculate the ph or the hydrogen ion concentration as required for each of the following substancesa 0075m acetic acidb
when at rest a proton experiences a net electromagnetic force that has a magnitude of 72 times 10-14 n and points in
a baseball catcher puts on an exhibition by catching a 0150-kg ball dropped from a helicopter at a height of 100m above
a 40-kg hanging mass is connected by a string over a pulley to a 80-kg block ona frictionless ramp with an angle of
an object of mass m attached to a spring of force constant k oscillates with simple harmonic motion the maximum
a 150 n sled is pulled up a 28 degree slope at a constant speed by a force of 100 n what is the coefficient of kinetic
a car of mass 1200kg is heading east at 10ms a second car of mass 1500kg is heading west at 200ms they meet in an
a 126 g cd with a radius of 616 cm rotates with an angular speed of 313 rads what is its kinetic energywhat angular
two parallel uniformly charged infinitely long wires carry opposite charges with a linear charge density 383 cm and
for each stereoisomer draw the structure be sure to specify the stereochemistry via wedge-and-dash bonds1
a commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of t 23 c r 035
a 240-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 nm compressing the
a student wanted to dry some diacetone alcohol a and allowed it to stand over andydrous potassium carbonate for a week
westerly winds coming off the pacific ocean rise over the rocky mountains which rise to a height of approximately 15000
you have a ballistic pendulum at the end of the event the angle of the pendulum is with the length of the pendulum
a methyl orange is an indicator that changes color over a range from ph 31 to ph 44 what is ka of methyl orangeb
on a very muddy football field a 100kg linebacker tackles an 85kg halfback immediately before the collision the