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Question- Propane, c2h8, and n-octane, c8h18, are important components of the widely used fossil fuels. The enthalpy change for the combustion of 1 mole propane is -2219 kj and that for 1 mol octane is -5466kj. Calculate the enthalpy change per gram for each compoundIllustrate the computation in detail
salt dissolves in 9.10g of water to give a saturated solution at 25C. What is the solubility (in g salt/100g of H2O)of the salt show work
What volume and mass of steam at 100 degrees celsius and 760 torr would release the same amount of energy as heat during condensation as 65.5 cm(cubed) of liquid water would release during freezing?
A chemist performed a titration experiment in order to determine the concentration of a given aqueous solution of HCl (an acid). She pipeted 25.00 mL of the HCl solution into an Erlenmeyer flask.
When X rays of wavelength 0.093 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2 degrees;. What is the distance between the layers of atoms responsible for the diffraction?
How are fatty acids transported into the mitochondria for breakdown? Which precursor for fatty acid synthesis blocks this transport pathway, and how is that important for the regulation of fatty acid metabolism?
How do I convert moles of cobalt per liter, to mg cobalt per kg of soil? Originally the cobalt was extracted from the soil, dissolved in water and concentrated by a factor of 10,000 to prepare one liter of solution.
Suppose you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77 x 10^-5
The NMR spectrum shows only three singlets: one of area 9 at 0.9 ppm, one of area 2 at 1.0 ppm, as well as one of area 2 at 2.4 ppm. The singlet at 1.0 ppm disappears on shaking with D2O. Find out the structure of the unknown compound.
one important application of reverse osmosis is the desalination of seawater. to extract pure water from seawater using
Five potential structures belonging to point groups Oh,D3h,D6h,D2h and D3d. Sketch geometries that are consistent with the possible point groups?
An unknown compound contains only carbon, hydrogen, and oxygen (). Combustion of 4.00 of this compound produced 5.87 of carbon dioxide and 2.40 of water.
Write the correct equation for the principal B/L acid/base equilibrium reaction in 0.1 M (H4N)2So4.
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