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The lattice energy of LiBr is -807 kJ/mol. If 150g of LiBr is dissolved in water,...
When 10.0 grams of LiBr are dissolved in 100.0 grams of water in a calorimeter, the temperature increases from 30.00°C to 42.22°C. Use this information to determine the enthalpy change in units of kJ/mol of reaction. Assume the specific heat of the solution is the same as that of pure water (4.18 J/g •°C). -120. kJ -4.43 kJ -4.88 kJ -56.2 kJ -48.8 kJ
Calculate the lattice energy of LiBr(s) using the following thermodynamic data (all data is in kJ/mol). Note that the data given has been perturbed, so looking up the answer is probably not a good idea. Li(s) AHgublimation 139 kJ/mol Li(g Ionization energy-500 kJ/mol Br-Brig Bond energy 173 kJ/mol Br(g) Electron affinity 345 kJ/mol LiBr(s) AH°f-371 kJ/mol kJ/mol Submit Answer Retry Entire Group 8 more group attempts remaining Calculate the lattice energy of LiBr(s) using the following thermodynamic data (all data...
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. You may want to reference (pages 551 - 555) section 12.3 while completing this problem. How much potassium nitrate has to dissolve in water to absorb 109 kJ of heat? Express your answer using two significant figures.
If the lattice energy for a compound is 666 kJ/mol and the ΔH(soln) is 12.9 kJ/mol, what is the Δ(hydr) in kJ/mol to the nearest integer?
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 115kJ of heat? Express your answer using two significant figures. (in kg)
1. Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 112 kJof heat? 2. Calculate the mass of nitrogen dissolved at room temperature in an 97.0 Lhome aquarium. Assume a total pressure of 1.0 atmand a mole fraction for nitrogen of 0.78. 3. Use Henry's law to determine the molar solubility of helium at a pressure of 2.0 atmand 25 ∘C....
1. A substance has a molar heat of solution of - 1000 kJ/mol. What is correct if 0.5 mol of this substance is dissolved in water? There might be more than one correct answer? A. If only considering the heat exchange within the solution, the resulted solution will have a higher temperature. B. 1000 kJ of heat will be absorbed by the solvent. C. 500 kJ of heat will be absorbed by the substance D. 500 kJ of heat will...
5. Calculate the enthalpy of dissolution for ammonium nitrate in water in kJ/mol. Lattice energy the At step, + Alt step, + A H stepe + AH" step, + AH steps a = mx CS AT =110.07(4.184 1(-6.80 9 242,672 J 1 2 86.2 KT ! Data Collection Record your data in an organized manner. See the Data Sheet for Lab 7 as an example. 'he better your ex mass of H2O=139.5lg 40.9sq = 98.56 an ass NHU O: 10g...
Calculate the lattice energy of AgF(s) using the following thermodynamic data (all data is in kJ/mol). Note that the data given has been perturbed, so looking up the answer is probably not a good idea. Ag(s) Asublimation -265 kJ/mol Ag(g) Ionization energy-711 kJ/mol F-F(g) Bond energy- 138 kJ/mol F(g) Electron affinity348 kJ/mol AgF(s) AHor-225 kJ/mol kJ/mol Do you expect this value to be larger or smaller than the lattice energy of AgCI(s)?
With secondary applications ranging from sedative to fire retardant, calcium bromide is used primarily in concentrated solution as an industrial drilling fluid. (a) Use Table 13.4 and the lattice energy (2132 kJ/mol) to find the heat of solution (kJ/mol) of calcium bromide. We are given, or can look up, the individual enthalpy components for a salt dissolving in water and have to determine their signs to calculate the overall heat of solution (ΔHsoln). The components are the lattice energy (the...