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Butanoic acid has a partition coefficient of 3.0 favoring benzene when distributed between water and benzene. Determine the formal concentration of butanoic acid in each phase when 100mL of 0.10 Maqueous butanoic acid is extracted with 25mL of benzene (a) at pH4.00 and (b) at pH 10.00.
what is the molar mass of a sample of gas that has a dnesity of 1.09 g/L at 1.02 atm pressure and 25.0C.
The standard heat of combustion of propene, C3h6 g, is -2058kj/molc3h6 g. Use this value and other data from this example to determine ^H for the hydrogeneration of propane to propane
a fuel gas containing methane and ethane is burned with air infurnace producing a stack gas at 300c and 105kpaabsolute.
Barbituric acid, HC4H3N2O3.... Its pKa is 4.01. What is the [H+] and pH of a 0.044 M solution of H-Bar
Explain why these sources may be considered reliable
Cesium-137 has a half-life of 30 years. You begin with a 20.0 g sample of Cs-137. How many half-lives occur if you wait a total of 60 years?
What is the pressure in a 17.1 L cylinder filled with 47.9 g of oxygen gas at a temperature of 341 K?
The element X occurs naturally to the extent of 20.0% superscript 12X and 80.0 % superscript 13X. The atomic mass of X is nearest:
Assuming that a neutron star has the same density as a neutron, calculate the mass (in {\rm kg}) of a small piece of a neutron star the size of a spherical pebble with a radius of 0.16 mm
many portable gas heaters and grills use propane c3h8.using enthalpies of formation calculate the quantity of heat
Write and balance the chemical equation for combustion of C13H24O. What is the sum of all of the coefficients in the correctly balanced chemical equation
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
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