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diamond is the hardest substance and the best conductor of heat yet characterized for these reasons it is used widely
calculate the mass of magnesium hydroxide formed in the reaction of 20 l of a 58 m solution of sodium hydroxide with
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a 250-l tank is evacuated and connected to a 500-l bulb filled with compressed argon after they are joined the pressure
draw the major organic product of the regioselective reaction of 2-methyl-2-pentene with hgoac2 in presence of h2oin
a mixture containing 0232 mol heg 0163 mol h2g and 0161 mol n2og is confined in a 2200 l vessel at a constant
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please calculate the amound of compound a that remains in 10 ml of an aqueous phase after three extractions with
assuming that p and t are known which of the following measurements on gas samples would directly yield the information
calculate the concentrations of all species in a 144 m na2so3 sodium sulfite solution the ionization constants for
a gas mixture in a 4600 l container at 415degc contains 100 g each of ar co and ch4 find the partial pressure of ch4
when 370 ml of 0535 m h2so4 is added to 370 ml of 107 m koh in a coffee-cup calorimeter at 2350degc the temperature
1000 ml of a hydrochloric acid solution was titrated with a 01270-m solution of barium hydroxide if the end point was
write a balancing equation for the reaction of potassium crbonate plus lead11 nitrate where the products are lead 11
composting is a microbial process used to convert organic wastes to a solid product that can be used as a soil
hydrazinen2h4 is a fuel used by some spacecraft it is normally oxidized by n2o4 according to the following equation
a photon of light has a frequency of 280x1014 hz what is the wavelength of the photon in units of
if a helium atom absorbs a photon with a wavelength of 5844 nm one electron will be promoted from the 1s orbital to a
which one of the following expressions describes the heat evolved hrxn in a chemical reaction when the reaction is
in general terms why do functional groups impart more chemical reactivity to families that have them why dont the
a 0050 mol sample of formaldehyde vapor ch2o was placed in a heated 500 ml vessel and some of it decomposed the
the acid-base neutralization reaction of solid ammonium chloride with solid barium hydroxide form barium chloride
suppose that in an alternate universe the possible values of ml were the integer values including 0 ranging from -l -1