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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?
A piece of silver (25 g) is heated to 100 degrees celsius, then dropped into 42.5 g of water with a temperature of 21.7 celsius. Assume they come to the same temp, what is the final temp of the silver and water? (Molar capacities: Ag 25.351 J/mol*..
100g of water (specific heat=4.184 J/g*C) and 100g of a metal sample (specific heat=0.397 J/g*C) are heated from 25 degrees celcius to 75 degrees celcius. Which substance required more thermal energy to reach 75 degrees celcius?
Given the three isomeric alcohols, 2,2-dimethyl-1-butanol, 2-methyl-2-pentanol, and 2-methyl-3-pentanol, which are chiral
an extended source is spherical in shape with a radius of 2.00 cm and emits 12.57 w from 399.5 to 400.5 nm. determine
Ethane and bromine react immediately after being irradiated with UV light. When irradiation stopped, the rate of reaction decreases, but the reaction does not stop immediately. Explain.
Calculate the partial pressure of SO2. Calculate the partial pressure of Cl2. Calculate the equilibrium constant at this temperature.
the mixture of saltwater and ice around the ice cream bucket in the ice cream machine is at a temperature of -8.40c.
Calculate the concentrations of all species in a 0.530 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
A second order reaction of the type A + B--> P was carried out in a solution that was initially .075 mol dm^-3 in A and .050 mol dm^-3 in B. After 1.0 h the concentration of A had fallen to .020mol dm^-3 a)Calculate the rate constant b)What is the..
determine the equilibrium ph of aqueous solutions of the following strong acids or bases: a)15mg/l of hso4- b)10 mM NaOH c)2500 mg/l of HNO3.
A star is estimated to have a mass of 1x10^36 kg. Assuming it to be a sphere of average radius 7.5x10^5 km, calculate the average density of the star in units of grams per cubic centimeter.
When she introduced 0.177 moles of NOBr(g) into a 1.00 Liter container, she found the equilibrium concentration of Br2(g) to be 1.76E-2 M. Calculate the equilibrium constant, Kc, she obtained for this reaction. Kc =
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