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a first order reaction a-gt product has a half-life of 198 min what is the rate of the reaction when a 0632
the boiling point of another member of this homologous series was found to be 309 what is the likely molecular formula
the solubilityof n2 gas in water at 204 atm is 48 mg of n2 gas100 g water calculate the solubility of n2 gas in water
acetone c3h6o and ethyl acetate c4h8o2 are organic liquids often used as solvents at 30 degrees c the vapor pressure of
1 does a 10kg solid iron brick have twice as much mass as a 5 kg solid bricktwice as much weighttwice as much volume2
treatment of 1385 g of an unknown metal m with an excess of aqueous hcl evolved a gas that was found to have a volume
a solution is composed of 160 mol cyclohexane p976 torr and 210 mol acetone p2295 torr what is the total vapor pressure
if 0420 mol of a nonvolatile nonelectrolyte are dissolved in 390 mol of water what is the vapor pressure ph2o of the
what mass of sucrose in grams should be combined with 531g of water to make a solution with an osmotic pressure of
the solvent for an organic reaction is prepared by mixing 700 ml of acetone c3h6o with 730 ml of ethyl acetate c4h8o2
an excess of o2 reacted with 368 g of fe what is the percent yield if 486 g of fe2o3 are
what is the percent yield in a reaction between 536 g o2 and 516 g al if 873 g of al2o3 is
why does the acid-catalyzed dehydration of 2-butanol an e1 reaction favor the formation of cis-2-butene over
a calorimeter with a heat capacity of 461 kjk contains 18050 g of freon-12 benzoic acid is combusted in the calorimeter
at 550 degrees c what is the vapor pressure of a solution prepared by dissolving 758 g of lif in 259 g of water the
how many grams of f2 must react with nacl in the following reaction if 800 kj of energy are released 2nacl f2 --gt
over the course of a month a family used 100 gallons of hot water per day what is this families monthly expenses for
two manufacturing plants need 10e4 kg of al each week one plant produces the al from bauxite al2o3 whereas the other
2 kg of water exist initially as a vapor and liquid at 90 degrees c in a rigid container of volume 242 m3a at what
will this solution deviate positively from deviate negatively from or ideally follow raoults
one kilogram of steam in a piston cylinder device undergoes the following changes of state calculate q and w for each
a steam turbine operates between 500 degrees c and 35 mpa to 200 degrees c and 03 mpa if the turbine generates 750 kw
one mole of an ideal gas cp7r2 in a closed piston cylinder is compressed from initial state of temperature 100 k
air at 30 celcius and 2 mpa flows at steady state in a horizontal pipeline with a velocity of 25ms it passes through a
an ideal gas enters a valve at 500k and 3mpa at a steady state rate of 3 molmin it is throttled to 05 mpa what is the