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what is the density in grams per liter of a gas mixture that contains 250 f2amp160and 750 heamp160by volume at 768 mm
what minimum frequency of light is required to ionize sodium the energy required to ionize sodium is 496 kjmol answer
calculate the vapor pressure of a solution made by dissolving 893 g of urea molar mass6006 gmol in 1985 ml of water at
solutions of hydrochloric acid caused the light bulb to glow brighter than solutions of acetic acid how do you account
there are two possible ways to connect the atoms in hydrogen cyanide hcn and hnc write the lewis structures and use
a dilute solution containing 5 ppm of solute has a density of 100 gml express the concentration of the solute in gl
1 during the extraction of trimyristin from nutmeg two students were given different samples of nutmeg they noticed
a sports car moving at constant speed travels 105 m in 48 s if it then brakes and comes to a stop in 40 s what is its
the combination reaction of sodium metal and chlorine has to form sodium chloride is represented by the following
sodium cyclamate nac6h12nso3 was a popular nonsugar sweetener until it was banned by the food and drug administration
when active metals such as sodium are exposed to air they quickly form a coating of metal oxide the balanced equation
suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions
how many liters of the antifreeze ethylene glycol would you add to a car radiator containing 650 l of water if the
a bottle of concentrated sulfuric acid is labeled as 96 wt mm h2so4 the solution has a concentration of 180 ma what is
if 0500 l of aqueous solution with a density of 105 gml contains 183 ug micrograms of poison express the concentration
suggest an experimental procedure that could be used to synthesize 12-dimethylcyclopentene from12-dimethylcyclopentanol
at 500k the equilibrium constant kp for the reaction is 424e-10 r08206 what is the value of kc for the reaction cocl2co
assume an indicator works best when the equivalence point of a titration comes in the middle of the indicator range
ethyl chloride a substance used as a topical anesthetic is prepared by reaction of ethylene with hydrogen chloride
draw every stereoisomer for 12-difluoro-12-dimethylcyclopentane use wedge and dash bonds for the substituent
aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating
free radicals are also important in many environmentally significant reactions for example photochemical smog which
a 5000-ml sample of 0100 m koh is titrated with 0152 m hno3 calculate the ph of the solution after 5200 ml of hno3 is
a 100 ml sample of 010 m hcl is mixed with 50 ml of 015 m nh3 what is the resulting ph kb for nh3 18 times
lakes that have been acidified by acid rain can be neutralized by liming the addition of limestone caco3 how much