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A gas sample has a volume of 4250 ml at 15 degree celsius and 749mmHg. What is the new temperature (degree celsius) after the sample is transferred to a new container with a volume of 2.50 L and a pressure of 1.20 atm
Calculate the partial pressures of the gases if the total pressure is 2.00atm at a given temperature.
calculate the ph that results when 100 mL a liquot of 0.0500 M is added to 400 M of a NH3/NH4+ buffer that is 0.200 M in NH3 and 0.300 M in NH4Cl
Many important drugs contain the amine functional group, which makes them basic. Many drugs also contain an amide group, which is effectively neutral. Suggest a way to separate ephedrine, a stimulant and decongestant drug shown below, from phenace..
Is 2-methyl-2-propanamine (C4H11N) a primary amine, secondary amine, tertiary amine, or quaternary ammonium salt? 2) Is N-methyl-2-propanamine a primary amine
At 25ºC the solubility product constant, Ksp, for magnesium phosphate, Mg3(PO4)2, is 1.0´10-24. The solubility product constant for magnesium fluoride, MgF2, is 7.0´10-11.
Compound A is optically active and has the molecular formula C5H10O. On catalytic hydrogenation (addition of hydrogen) of A, Compound B is obtained
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
Calculate the molar enthalpy change when mercury is cooled 10 K. The molar heat capacity of mercury is 27.8 J/K*mol
What is the pH of the solution halfway to the equivalence point. What is the pH of the solution at the equivalence point
suppose 12.0g of carbon (c) react with 70.0g of sulfur (s) to give 76.0g of the compound carbon disulfide (CS2).In the process all the carbon used up, but some elemental sulfur is left over.
A white colored salt contains a cation from group 4. It has no reaction with concentrated H2SO4 or AgNO3. It produces an insoluble product with acidic BaCL2. This salt is not water soluble. What is the chemical formula for this salt
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