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p4s10cl2grarr4pcl5ga how many moles of pcl5 can be produced from 260 g of p4 and excess cl2 express your answer to
1 you have 125 ml of nitric acid but you dont know its concentration to determine the concentration you take a 3291 ml
1 a bottle is labeled 200 percent by mass hcl with a density of 1096gml calculate the morality please show and explain
khp is a monoprotic acid with a molecular formula of khc8h4o4 mw 2042215 gmol in order to titrate a sample of khp a
an open vessel containing 02 lb of liquid water placed in an empty room 5ft wide and 4ft deep and 7ft high which
a sample of solution contains 0039g of magnesium ion in 25kg of sea water how many ppm of mg2 are there in the
a spray contains 042g of antiseptic phenol is dissolved in 270ml of solution what is the weightvolume percent
in a sample consisting of 100 mol nabr and 0300 mol ki what is the mass perentage of
1 calculate the heat capacity in joules and in calories per degree of the following a 284 g of water b 100 oz of lead2
a 4000 ml sample of a dialkylether vapor was found to weigh 08425 g at 1000 bar and 7000 c use the ideal gas law to
the reaction below can be used to prepare potassium permanganate kmno4 a powerful oxidizing agent when the reaction is
a stellar objective is emitting radiation at 335mm if a detector on earth is capturing 33x108 photons per second at
what is the concentration of chloride ions in a solution that contains 156 mm sodium chloride 214 mm calcium chloride
1 you have dissolved 0503 g of potassium hydroxide in 125 ml of water you wish to neutralize this base by adding
a substance b has a normal boiling point of 893 degc and its enthalpy of vaporization of 260 j g-1 to change 150 grams
if i were to take a 1 kg block of ice whose temperature was -30 c and drop it into a container holding 2 kg of water at
1 the combustion of propane with oxygen is described in the unbalanced reaction below if 01240 kg of propane is
a particle has a velocity of 33 of the speed of light if the wavelength of the particle is 15 x 10-10 m calculate the
in a chemical reaction c2h6o pcl3 aelig c2h5cl h3po3 when the reaction was carried out the actual yield of c2h5cl was
calculate the ph of a 160 m kbro solution ka for hypobromous acid hbro is 20 times
find the ka of a weak acid given the following information the concentration of the acid was found from the titration
many scientists are using 37 mg per kg bw per d-1 as the current value for the slope of the dose-response curve for
in one molecule of monomethylarsonic acid how many valence electrons are
the equilibrium constant k for the following reaction isnbsp510times10-6nbspatnbsp548nbspknh4cls lt-----gtnbspnh3g
calculatenbspmoles of the gases once equilibrium has been re-established given volume 070 l initial moles of hig 070