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a white solid precipitate was dissolved with 6m nh3 the filtrate on adding 6m hno3 yielded a white precipitate again
sam pushes a 100-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 30 n
if 550 ml of ethanol density0789 gml initially at 80 c is mixed with 550 ml of water density 10 gmlninitially at 286 c
the tension in the horizontal towrope pulling a water-skier is 240 n while the skier moves due west a distance of 54 m
ph for the reaction 2 h2o l ltgt h3oaq oh-aq is 558 kjmol and the equilibrium constant for the reaction is keq
in an amusement park ride cars are suspended from l 429 m cables attached to rotating arms at a distance of d 611 m
one student used 01 moll naoh to titrate an unknown diprotic acid the concentration of the unknown acid is 51 gl and
on adding 10 drops of 6m hcl solution to an unknown solution of metal ions a chem-127 student observed a white
your cars wheels are 65 cm in diameter and the wheels are spinning at an angular velocity of 107 rads how fast is your
a student find out the mass percent of ni is 297 nh3 is 344 and cl is 359 in a compund containing nickel ammonia and
a diver springs upward from a diving board at the instant she contacts the water her speed is 890 ms and her body is
the thermochemical equation for the formation of ammonia from elemental nitrogen and hydrogen is as follows n2g3h2g--gt
when zinc chloride zncl2 reacts with nh3 solution a white crystalline compound znnh3ncl2 is produced a student used the
a student determined the following percent transmittances for a 05 m chromium ion solution using a spectronic 20
the two methods used to analyze the coordination compound of nickel ii ion ammonia and chloride ion werea percipitation
a horizontal rifle is fired at a bulls-eye the muzzle speed of the bullet is 621 ms the barrel is pointed directly at
based on the data gathered in the rutherfords scattering experiments the concept of atomic structure was modified which
a long solenoid has 1400 turns per meter of length and it carries a current of 35 a a small circular coil of wire is
delta g for the reaction ag2 os-----gt2ags12 o2g is 11 kjmole what will be the value of delta g for this reaction at 25
consider the reaction 3x-----products the reaction is initiated with a 250 m in x the observed rate constant is 0020s-1
how much cu will be deposited by the passage of 235a in a solution of 020 m cuso4 for half an hour cu2
draw the skeletal structure where each atom obeys the octetduet rule and no atom possesses a formal charge for the
in a battery water is used as a salt bridge and the two electrodes are carbon and aluminum find the standard reduction
at time t 0 and at position x 0 m along a string a rightward x dir traveling sinusoidal wave with frequency of 220 hz