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caf2 is utilized as fluoridation in municipal water system compute the solubility of caf2 in hard water in which the
explain the managing director of a well-known company on wall street thrives on a diet of bread pasta fruit jam and
the main industrial use of hydrogen is in the production of ammonia by the haber process shown below3 h2g n2g 2 nh3ga
if a gas of unknown identity diffuses at a rate of 833mls in similar conditions a second gas with a molar mass of 440
explain a sample is a mixture of the salts and silver nitrate copper ii chloride and iron iii chloride define when a
a convinced mass of magnesium is reacted with 6m hcl the hydrogen gas liberated is collected by displacing 200 ml of
the mass flow rate specific heat as well as inlet temperature of the tube-side stream in a double-pipe parallel-flow
a 100 liter container is filled with 10 mol of h2g heated to 3000 k causing some of the h2g to decompose into hg
a a complex ion ml62 is green in solution explain if the same metal forms a complex with another ligand q that
an astronaut travels to a distant star by a speed of045c relative to earth from the astronauts point of view the star
explain how many electrons are in a completed valence shell of most second period atoms while they combine with other
a certain gas at 298 k and 10 bar has a chemical potential that is 100 kjmol less than an ideal gas under the same
a lead rod and a common glass rod both have the similar length when at235deg c the lead rod is heated to532deg c to
a galvanic cell is constructed using the cucu2 and cr3cr2o7 2- redox couplesa state the reduction half reaction for the
the image produced by a converging lens is typically a dissimilar size from the object itself but for a lens with focal
at the end of 2009 global population was about 68 billion people explain what mass of glucose in kg would be required
explain what is the maximum amount of product that can be formed from 3caco3 2
find out the mass of the copper that was removed from the penny presuming excess nitric acid computing the grams of
starting with the ideal gas equation illustrate how the density of a vapor may be determined by the vapor density
while a suspected drunk driver blows 190 of his breath through the fuel-cell breathalyzer the breathalyzer makes an
the distance between the eyepiece and the objective lens in a certain compound microscope is 184 cm the focal length of
explain how many grams of sodium dichromate na2cr2o7 must be added to a 100ml volumetric flask to prepare 025m na2cr2o7
explain the half-life of tritium hydrogen-3 is 123 yr if 616 mg of tritium is out from a nuclear power plant during the
milk of magnesia mg oh 2 is prepared from aqueous solutions of magnesium sulfate and sodium hydroxide explain if a
explain what is the expected emission wavelength for a li 2s1 to li 2p1 transition define what color does this