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a buffer is prepared by adding 420g nah2po4 to 10 l of solution that is 10m napo4 assuming no volume change whats the
at the time the switch is closed completing a simple lc circuit the capacitor has 34 j of stored energy and the
the power of sunlight reaching each square meter of the earths surface on a clear day in the tropics is close to 1 000
as a side reaction of benaldehyde with al in 5m naoh would ethyl acetate keep it from contaminating the hydrobenzoin
identify how precitipation reactions can be used in the water treatment and purification processes to help maintain a
a string oscillates according to the equation below y 030 cm sin3 cm-1x cos20 s-1ta what is the amplitude of the two
use a solubility table to predict which of the following combinations of ions would produce a precipitate for the
the clarinet is well modeled as a cylindrical pipe that is open at one end and close at the other find the wavelength
if 213 ml of a 0120m naoh solution are required to neutralize 0400 grams of an unknown monoprotic acid what is the
two people hear a tornado siren but one listener is 225 times farther away from the source of the sound than the other
how many grams are present in 1 gram of potassium-40 its natural abundance is 00117 and its half life is 128x109
suppose a 400 l nickel reaction container filled with 00090 m h2 is connected to a 500 l container filled with 0296 m
a ball of aluminum is at a depth of 1000 m under water whose density is 1000 kgm3 the bulk stress on the ball due to
you have a string with a mass of 123 g you stretch the string with a force of 987 n giving it a length of 193m then you
a gaseous fuel mixture stored at 748 mmhg and 298 k contains only methane ch4 and propane c3 h8 when 112 l of this fuel
a flagpole consists of a flexible 515 m tall fiberglass pole planted in concrete the bottom end of the flagpole is
briefly explain why precipitates are usually rinsed with distilled water before they are tested
a 013 m segment of wire lies along the y-axis and carries a current of 38 a in the negative y direction a uniform
a hemoglobin molecule can bind up to four oxygen moleculesin a certain experiment a 0085l solution containing 6g of
draw the skeletal structure of cyanohydrin that is formed when 2-butanone reacts with the cyanide ion in the presence
write the ground state configurations of c2 and f2 and then predict which molecule should have the greater bond
a particular wire has a diameter of 17 mm and length of 13 m if its resistance is 15 m what is the resistivity of the
two resistors of resistance r are connected in parallel the combination is connected in series to a resistor of
the predominant intermolecular forces in hydrocarbons are dispersion forces there are two factors that increase the
methyl acetate ch3cooch3 reacts in basic solution to form the acetate ion ch3coo- and methanol ch3oh assuming the