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Estimate the Debye Temperature of gold form the following information. For gold, the atomic weight is 197, the density is 19000 kg/m^3 and the velocity of sound is 2100m/s. For copper the atomic weight is 63.5 the density is 8900 kg/m^3 and the velocity of sound is 3800m/s and the debye temperature is 348K. Copper has the same structure as gold
A sparingly soluble salt gets precipitated only when the product of concentration of its ions in the solution (Qsp) becomes greater than its solubility product. If the solubility of BaSO4 in water is 8 × 10-4 mol dm-3, calculate its solubility in ..
an electron is confined to a linear region with a length of the same orderas the diameter of an atom (about 100 pm)
A system expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work (w) if the expansion occurs against a constant pressure of 5.00 atm.
Suppose that you have 175 mL of a buffer that is 0.300 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO%u2013). Calculate the maximum volume of 0.250 M HCl
total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 149 g of solution. The reaction
The standard enthalpy change for the reaction below is 436.4 kJ/mol. Calculate the standard enthalpy of formation of atomic hydrogen (H). H2(g)-->H(g) + H(g)
solutions of ag plus, cu 2 plus, fe 3plus, and Ti 4 plus are electrolyzed with the constant current until 0.10 mole of metal is deposited. which will require the greatest lenght of time.
Explain how to determine exclusion limit of a gel of unknown origin.
The main reason that alkyl halies are good electrophiles is that: A) the carbon atom linked to the halogen is negatively polarized. B) the carbon atom linked to the halogen is positively polarized
Silver metal crystallizes in a cubic closest packed structure. The face centered cubic unit cell edge is 409 pm. Calculate the density of the silver metal.
How many peaks would you expect to find in the NMR spectrum of caffeine? What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?
Cs in the metal with a bcc structure is 272 pm, calculate the expected atomic radius of the Cs atom with a coordination number of 12.
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