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a sample of gas has a mass of 500 mg and occupies a volume of 413 ml at 23ordmc and 745 torr what is the molecular
what volume will 500 ml of gas at 20 c and a pressure of 420 mm hg occupy if the temperature is reduced to -80 c and
for the reaction shown find the limiting reactant for each of the following initial amounts of reactants
the label on a tank of gas of unknown origin had been lost to determine its identity molecular weight a certain volume
a sample contained a mixture of mgco3 and baco3 the amount of mgco3 was determined by reacting 1037 g of the sample
a sample of chlorine gas is confined in a 208-l container at 338 torr and 500 degrees c how many moles of gas are in
how many liters of gaseous hydrogen bromide at 97 degrees c and 0953 atm will a chemist need if she wishes to prepare
a sample of air contains 7808 nitrogen 2094 oxygen 00500 carbon dioxide and 0930 argon by volume how many molecules of
a sample of an unknown gas effuses in 147 min an equal volume of h2 in the same apparatus under the same conditions
calculate the ph of 235 ml of a 165 m aqueous nh3 solution after the addition of 217 ml of 100 m hcl the kb for nh3 is
a substance composed of which of the following molecules will have stronger intermolecular forces co2 or
given the following vapor pressures at 20 degrees celsius arrange the compounds in order of increasing boiling point
the activation energy for a particular reaction is 64 kjmol by what factor will the rate constant increase when the
calculate the current ma required to deposit 089g of tungsten metal in 45 minutes from a solution of wo42- atomic
what type of crystal lattice does each metal form the number of atoms per unit is given in parentheses ni 4 cr 2 ca
nickel ni can be plated from aqueous solution by the half-reaction ni2aq2e-nis how long will it take to plate 296 g of
an environmental engineer analyzes a sample of air contaminated with sulfur dioxide to a 500-ml sample at 700 torr and
what is the electron configuration of a third period element that forms an ion with a -2
when sbcl3g 4090 grams and 1271 grams of cl2g in a 1200 l reaction vessel at 7050 degc are allowed to come to
the goes like a balloon containing 355grams of cl2 and 380 grams of f2 then somewhere along in teh question it says the
what type of phase change does a substance undergo at 750atm and 30 degrees
the product contains a three carbon chain from the alcohol connected to a five carbon chain from the acid by an ester
the atomic masses of nitrogen-14 titanium-48 and xenon-129 are 13999234 47935878 and 128904779 respectively 1 for each
which substance is the limiting reactant when 30g of sulfur trioxide 8006 gmol react with 60 g of naoh 4000 gmol