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a 0050 m h2s solution contains 015 m nicl2 and 035 m hgno32 what ph is required to precipitate the maximum amount of
a hunter who is a bit of a braggart claims that from a distance of 15 km he can selectively shoot either of two
light enters a container of liquid at an angle of 48deg to the normal the refracted beam makes an angle of 37deg with
a gaseous compound containing hydrogen and carbon is decomposed and found to contain 8266 carbon and 1734 hydrogen by
in a youngs double slit experiment the 10th order dark fringe is located 0025 m to the side of the central bright
a large group of football fans comes to the game with colored cards that spell out the name of their team when held up
write out all equations but you do not have to do the integration how you would calculate the absolute entropy of cl2g
the enthalpy of vaporization of ethanol is 3856 kjmol it has a boiling point of 35144 k what is the difference in
a ball rolls from rest down a roof without slipping the roof has pitch of 30 degree until there is a flat horizontal
complete the following calculation a student wants to react mgs with 100ml of 15m hcl but the intent is to have all the
each of the following complex ions is either tetrahedral or square planar on the basis of the number of unpaired
two identical wheels are moving on horizontal surfaces the center of mass of each has the same linear speed however one
constructive interference occurs when a soap bubble reflects light of wavelength 430 nm what is the minimum thickness
one mole of benzene component 1 is mixed with 2 moles of toluene component 2 at 60 c and at such low pressure that
a spaceship approaches earth with a speed of 070c a passenger in the spaceship measures his heartbeat as 70 beats per
an ideal monatomic gas is contained in a vessel of constant volume 0210 m3 the initial temperature and pressure of the
dinitrogen pentoxide n2o5 decomposes by first-order process with a rate constant of 37 x 10-5 s-1 at 298ka what is the
a concave mirror in an amusement park has a radius of curvature of 40 m a child stands in front of the mirror so that
one end of a wire is attached to a ceiling and a solid brass ball is tied to the lower end the tension in the wire is
in a 050 m hcl solution an indicator is not all in acid form for methyl orange what percentage of the indicator is in
if the observed wind speed by an anemometer is 5 ms what is the wind speed at 100 m height if the value of the index p
a buffering system in the blood is h2co3hco4 at the normal blood ph 74 a solution of h2co3 and hco3 will change the ph
a buffer solution was prepared by adding 495 g of sodium acetate nach3co2 to 0250 l of 0150 m acetic acid ka 175 x
a sample of 20 grams of ammonia was placed in a 250 ml container and heated to 300 degrees c after equilibrium was