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if it takes 917 min for the concentration of a reactant to drop to 20 of its initial value in a first-order reaction
you dissolved three salts in the previous lab nacl cacl2 and alcl3-6h2o which of these three on a per gram basis will
in this experiment you are adding naphthalene to cyclohexane and using the freezing point depression to determine its
you determine that the freezing point of a solution consisting of 200 g of cyclohexane and an unknown amount of
diffraction of a wave through an opening may be observed when its wavelength is comparable to within a factor of 100 to
nitric oxide no reacts instantly with oxygen gas to form nitrogen dioxide no2 a dark-brown gas2 nog o2g 2 no2gin one
at low temperatures xenon freezes to a solid having a density of 5679 gcm3 below 84 k argon also freezes to a solid
the first ionization energy of lead pb is 716 kjmol if a pb atom is ionized using a photon of ultraviolet radiation
the electron affinity of tin sn is -107 kjmol in this case the negative sign of ea means that energy is required to
how many electrons can be removed from element 69 before it is reduced to its core electron configuration for the
a sample of potassium nitrate is collected in a 1500 ml flask the pressure of the gas in the flask is 22 atm and the
at low temperatures xenon freezes to a solid having a density of 5854 gcm3 below 84 k argon also freezes to a solid
how many electrons can be removed from element 79 before it is reduced to its core electron configuration for the
how many electrons are unpaired in the lowest energy electron configuration of element
cynthia lives 50 miles from grossmont college assuming that there are no traffic signals how long would it take in
during a servere episode of air pollution the concentration of lead in the air was observed to be 30110-6g pbm3 how
an aqueous solution of a soluble compound a nonelectrolyte is prepared by dissolving 332 g of the compound in
a buffer that is 0210 m in acid ha and 0172 m in the potassium salt of its conjugate base ka has a ph of 466 what is
solder is used in the electronics industry because it has a low melting point and can make durable electrical
consider a buffer that is 0155 m in lactic acid and 0155 m in sodium lactate what is the ph of the buffer after the
the freezing point of ethanol c2h5oh is -1146 degrees celcuus the molal freezing point depression constant for ethanol
the solubility of oxygen gas in water at 25 celcius and 10 atm pressure of oxygen is 0041 gl the solubility of oxygen
a 355 ml can od diet soda contains 55 mg of sodium how many gallons of diet soda must be consumed in order to ingest 10