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calculate the ionization of nitrous acid hno2 in a solution that is 0222m in nitrous acid and 0278m in potassium
a parallel plate capacitor has a capacitance of 85 microf when filled with a dielectric the area of each plate is 19 m2
an object of mass m 23 g and charge q 48 microc is attached to a string and placed in a uniform electric field that
if 1020g of khc8h4o4 20423gmol is completely neutralized with 0200 m koh what volume of potassium hydroxide is
two small plastic balls hang from threads of negligible mass each ball has a mass of 057 g and a charge of magnitude q
calculate the potential of the following two half- cells that are connected by a salt bridge a galvanic cell with two
when two identical ions are separated by a distance of 83times1010m the electrostatic force each exerts on the other
an experiment shows that a 248ml gas sample has a mass of 0433g at a pressure of 745 mmhg and a temperature of 28
two point particles of charge q1 46 microc and q2 81 microc are found to have a potential energy of 43 j what is the
a golf ball is struck at ground level the speed of the golf ball as a function of the time is shown in the figure where
a spectrophotometer has a meter that gives a reading directly proportional to the amount of light reaching the detector
calculate the potential of a zinc electrode immersed in 00100m in znnh34 2 and 025m in nh3 b4 for znnh34 2 is
suppose electrons in a tv tube are accelerated through a potential difference of 200 104 v from the heated cathode
how many seconds would it take to deposit 0500 g of ni metal on an electrode by passing a 300 amp current through a
a 10cm x 10cm x 10cm box is between the plates of a parallel-plate capacitor with two faces of the box perpendicular to
a boat can travel 15 kmhr in still water you want to cross a river 1 km wide by traveling east to west the river is
how many grams of cobalt metal can be formed if a 200 amp current is passed through a solution of co2 for a period of
what is the minimum voltage needed to produce a reaction in the electrolysis of copperii sulfate using inert electrodes
a diver springs upward from a board that is 295 meters above the water at the instant she contacts the water her speed
consider the titration of 300 of 0035 with 0030 calculate the after the following volumes of titrant have been
a charge q is located at the origin while an identical charge is located on the x axis at x 076 m a third charge of 2q
berylliumii forms a complex with acetylacetone 1662gmol calculate the molar absorptivity of the complex given that a
the highest barrier that a projectile can clear is 145 m when the projectile is launched at an angle of 130deg above
an organ pipe is 20m longassume the pipe is cylindrical with one closed and one open end1 what is the longest
which of the following will change the equilibrium constant a changing temperature b nothing changes the value of keq