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a 1790 g sample of a solution of the solute methanol in the solvent ethanol that has a concentration of 450 by mass
calculate the mass of the deuteron given that the first line in the lyman series of h lies at 82 259098 cm-1 whereas
by how much does the chemical potential of benzene change when the pressure exerted on a sample is increased from
what is the maximum number of phases that can be in mutual equilibrium in a four component
a 100-g sample of a mixture of ch4 and c2h4 reacts with oxygen at 25 degrees celcius at 1 atm to produce co2 and h20
determine the concentration of a naoh solution if 2780ml of naoh is required to neutralize 1000 ml of a 100m h2so4
some students observe a low-boiling fraction around 40 degrees c during the simple distillation of producing t-amyl
in the preparation of t-amyl chloride from t-amyl alcohol via a unimolecular nucleophilic substitution reaction an
calculate the minimum concentration of mg 2 that must be added to 10 m naf in order to initiate a precipitate of
assume that you pipet twenty milliliters of 0350 m cacl2 into a fifty milliliter volumetric flask and add di water to
a gas sample has a volume of 750 ml at 4 atm and 37c if the pressure changes to 5 atm and the gas is heated to 68c what
the solubility of lead ii iodide is 0064 g 100 ml at 20 deg c what is the solubility product for lead ii
a 00539g sample of iron sulfate was dissolved in dilute hcl and treated with 10 bacl2 solution the baso4 precipitate
compare the amount of energy released by the complete combustion of 1 gallon of ethanol with the amount of energy
when 150 ml of 0400 m h are mixed with 200 ml of 0500 m oh- the final temperature of the solution is 265degc what was
determine the thickness needed to reduce the intensity of a beam of gamma rays to 14th of its initial intensity in gcm2
a cache of hebrew manuscripts known as dead sea scrolls was found in 1947 the activity of carbon-14 in the linen
1000 g of ice at 0degc is added to 1250 ml of liquid water at 400degc in a styrofoam cup calorimeter the specific heat
3agno3aqsccl3aq3agclsscno33aqwhat volume of 0385 m scandiumiii chloride is required to completely react with 220 ml of
we will define stp as 25 c and 100 bar if a container holding neon gas is at volume of 526 l at stp and the gas is
when a person with hypoventilation is placed on a ventilator an air mixture is delivered at pressures that are
an evaluation of r was performed following the procedure described in this module the barometric pressure was 736 torr
show that an explanation for the nonexistence of caf can be found in the enthalphy change for the reaction 2caf s ---gt
a cylindrical gas chamber has a piston at one end that can be used to compress or expand the gas if the gas is
briefly describe the hazards associated with even small amounts of each of the following concentrated hci naoh solution