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what temperature would have to be maintained to have 14 moles of co2 at 78 kpa occupy a volume of 224 la 00067 kb 273
in order to buffer a solution at a ph of 457 how many grams of sodium acetate nach3coo should you add to 500 ml of a
a what is the mole fraction of o2 in a mixture of 509 g of o2 in a mixture of 509 g of o2 719 g of n2 and 132 g of h2b
a 500-ml volume of 015 m hbr is titrated with 025 m koh calculate the ph after the addition of 200 ml of
a deep sea diver uses a gas cylinder with a volume of 100 l and a content of 522 g of o2 and 336 g of he calculate the
room temperature is often assumed to be 25 degrees celcius calculate the molar volume of an ideal gas at 25 degrees
a fixed quantity of gas at 24 degrees celcius exhibits pressure of 735 torr and occupies a volume of 438 la use boyles
what mass of sodium acetate nach3coo must be added to 1 l of 01 m acetic acid solution to make a buffer with a ph
a sample of coal is completely burned in a 100 l cylinder at a constant pressure of 110 atm and a temperature of 1000
an open ended manometer containing mercury is connected to a container of gas what is the pressure of the enclosed gas
a buffer is initially prepared by adding 100 mls of 0500 m hol to 60 mls of 200 m naoi the mixture is brought to a
a certain 100 l buffer contains 0600 mol of a base and 0430 mol of the conjugate acid the ph is 830 what is the pka fo
a buffer is prepared by mixing 02 mole of hcooh with 03 mole of nahcoo in a volume of 200 ml how many grams of naoh
a 100 molar solution of acetic acid is titrated with 200 molar solution naoh what is the ph at equivalence
an aqueous solution of sodium chloride in an electrolytic cell is subjected to a current of 250 amps for 150 minutes
explain the coordination chemistry and chemical speciation utilized in the analysis of fluoride in water samples by
2 co no33 3 nh42 s co2 s3 6nh4 no3 how many nitrogen atoms are on each side of the
calculate the osmotic pressure in torr of 600 l of an aqueous 0896 m solution at 300 deg c if the solute concerned is
consider the following generic chemical equation a3bc what is the limiting reactant when each of the following amounts
a voltaic cell consists of a znzn2 half-cell and a nini2 half-cell at 25c the initial concentrations of ni2 and zn2
polyethylene is a synthetic polymer or plastic with many uses 141 g of a polyethylene sample was dissolved in enough
2 cu s s s cu2 s sa how many electrons are gained or lost by each sulfur atomb how many electrons are gained or lost
a typical single drop of liquid water has a volume of approximately 005 ml assuming the density of liquid water is 10
what is the boiling point change for a solution containing 0841 moles of naphtalene a nonvolatile nonionizing compound
if 231 grams of the vapor of a volatile liquid is able to fill a 498 ml flask at 100 degrees celsius and 775 mmhg what