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Compute the number of atoms in the subsequent unit cells a.) body-centered cubic structure b.) hexagonal structure. ii.) Compute the packing efficiency of each above unit cell.
Assuming the enthalpies are equivalent to free energies (they arent, but lets make the assumption for the moment), what are the equilibrium constants for the two equilibria in the gas phase?
We are investigating the keto-enol tautomerization of acetylacetone (pentane-2,4-dione) in an aqueous solutions at 25 degrees Celsius. The standard reaction Gibbs energy for the enol ketone tautomerization is -3.64 kJ/mol.
Find the volume of a molar solution - What volume of a 0.250 molar solution of silver nitrate, AgNO 3 , is required to react with 18.6g of potassium phosphate
An organic acid contains 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen by weight. A 0.080-mol sample of this compound weighs 11.60 g. What is the molecular formula of this acid
Propane (C3H8) is burned in oxygen to produce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are reacted with 10.0 mol O2
Which is a redox reaction. identify reducing and oxidizing agents. a) CH4 burns in oxygen to produce carbon dioxide and H2O. b) copper metal forms copper (I) oxide on exposure to air. c) iron rusts to form Fe2O3.
The density of an unknown substance was determined by adding a weighed piece to a graduated cylinder containing 37.3 mL of water. After the substance was submerged the water level was measured at 46.2 mL. The substance weighed 100.0 g. What was it..
Mercaptoacetic acid and NH3 were introduced, production of the complex with the former resulted in the release of an equivalent amount of EDTA, which required a 22.85-mL titration with 0.07238 M Mg2+. Calculate the percent Cu and Ni in the alloy.
Ethanol (C2H5OH) has a normal boiling point of 78.4 OC. Estimate Suniverse at this 50.0 OC for the process: C2H5OH (l) ? C2H5OH (g).
Approximately 250 mol of an ideal gas expands adiabatically and irreversibly from 2 m3 to 5 m3 against a constant restraining force of 100 kPa. Initially, the temperature and pressure of the gas are 300 K and 700 kPa
What mass of propane gas, C3H8, will occupy 860. mL at 880. mm Hg and 81.0°C?
A gas mixture is made by combining 8.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 19.20 L. What is the molar mass of the unknown gas?
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