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describe the intermolecular forces between the following compounds or mixtures ex london dispersion dipole-dipole
in the absorption spectrum of the hydrogen atom the electron is promoted from n2 level to the n3 level what energy does
hbr is an acid please write a chemical equation showing how it is an acid according to the arrhenius definition the
naohaq is a base please write a chemical equation showing how it is a base according to the arrhenius definition the
the value that should be reported for the number of moles of gas calculated from the ideal gas equation given the
calculate the acidity h concentration of a carbonated beverage which is 015 m carbonic acid h2co3 use only the first
the oh concentration of 045 m ammonia nh3 is 67x10-4 m writea the reaction equation for its ionizationb the equilibrium
calculate the ph of the solution prepared by mixing 100ml of 100 m acetic acid and 240 ml of 100 m sodium acetate
what is the purpose of adding phosphoric acid before titration of the iron iii with potassium
a temperature of a specific amount of gas in a sealed container changes from 20degc to 40degc if the volume remains
a sealed container of oxygen gas has a pressure of 442 atm at 3190 k if the container is cooled to 2390 k what is the
a gas cylinder contains a mixture of he and ne at stp which of the following quantities would have the largest
titration of a 3085 mg sample of synthesized aspirin with 0100 m naoh solution required 2030 ml what is the
if m is the molar mass r the gas constant t the temperature and p its pressure which of the following expressions
calcium nitrate will react w ammonium chloride at slightly elevated temperatures as represented in the equationcano32 s
for which of the following aqueous salts will electrolysis produce hydrogen gas and oxygen gas check all that
based on spectroscopy and the spec 20 what color light would you expect to have a wavelength of 550 nm explain your
the predominant isotope of gold 197 79 au has an experimentally determined exact mass of 196967 amu what is the total
1-how many moles of phosphine ph3 are produced for every 40 moles of hydrogen that react according to the chemical
how rapidly would each of the following particles be moving if they all had the same wavelength as a photon of red
titanium work function 694 x 10-19 j and silicon work function 724 x 10-19 j surfaces are irradiated with uv
the first ionization energy of a gas-phase atom of a particular element is 624 x 10-19 j what is the maximum wavelength
a hot-air balloon is filled with air to a volume of 303x103 m3 at 745 torr and 26 degree c the air in the balloon is
what is the molar solubility of lead chromate in 010 m hno3 if the ksp for pbcro4 is 28 x 10-13 and ka2 for h2cro4 is
what is the molar solubility of agcl in 030 m nh3 ksp for agcl is 18 x 10-10 and kf for agnh32 is 17 x