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Construct a Born Haber cycle for the formation of the hypothetical compound NaCl2, where the sodium ion has a 2+ charge.
A. How large would the lattice energy need to be for the formation of NaCL2 to be exothermic? b. If we were to estimate the lattice energy of NaCl2 to be roughly equal to that of MgCl2 (2326 kJ/mol from Table 8.2), what value would you obtain for the standard enthalpy of formation, Delta H formation, of NaCl2?
with what volume of 5.0M HF will 7.4 g of calcium hydroxide react completely, according to the reaction 2HF + Ca(OH)2 --> CaF2 + 2H2O
When 4.00g of hydrogen nuclei fuse to form helium in the sun, 0.0265g of matter is converted into energy. Given that the speed of light = 3.00x10^8 m/s and that a jolue = kg*m^2/s^2, calculate how much energy is given off.
Calculate the pH of this solution. B) A 150 mL of 0.15 M NH3 is slowly added to 25 mL of 02 M HCl. What is the pH of the resulting solution
The combustion of one mole of ethanol (C2H5OH(l)) to produce carbon dioxide and gaseous water has ?Hr = -1235 kJ · mol-1 at 298 K. What is the change in internal energy for this reaction?
a flask is filled with 1.20 of argon ar gas at the temperature ofnbsp twenty five degree celsius . a sample of c2h6
What pH is needed to precipitate Ni(OH)2 so completely that the nickel concentration is less than 1.1 x 10-5 M (Ksp = 1.6 x 10-14)
Calculate the atom economy for each method for preparing 2,3-dibromo-3-phenylpropanioc acid.
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
a certain monoprotic weak acid with ka 6.8 times 10-7 can be used in various industrial processes but is no longer
Compounds containing carbon-carbon triple bond undergo the Diels-Alder reaction. Formulate the product formed by the reaction of
If 4 liters per minute of 100 ppm 1,1,2-trichloroethane solution is to be treated in a packed tower air stripper, what air flow is required if equilibrium is assumed and 100% removal
the half life increased from 2.0 min to 4.0 min at 25C. Calculate the the order of the reaction and the rate constant.
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