Given the following information: energy of sublimation of Li( s)= 166 kilojoules per mole find bond...

Given the following information:
energy of sublimation of Li( s)= 166 kilojoules per mole
find bond energy of HCL= 427 kilojoules per mole
ionization energy of Li(g) =520 kilojoules per mole
electron affinity of Cl(g) =-349 kilojoules per mole
lattice energy of LiCl(s)=-829 kilojoules per mole
bond energy of H2= 432 kilojoules per mole

calculate the net change in energy for the following reaction:

2Li(s)+2HCl(g)------->2LiCl(s) + H2(g)

Expert Solution

2Li(s)+2HCl(g) ------->2LiCl(s) + H2(g)

Li(s)     →    Li(g)                           heat of sublimation of Li(s) = 166kJ/mol------->1
HCl(g)     →     H(g) + Cl(g)          bond energy of HCl = 427 kJ/mol------------->2
Li(g)     →    Li+ (g)   +   e-            ionizationenergy of Li(g) = 520 kJ/mol-------->3
Cl(g) +    e- →     Cl-(g)               electron afinity of Cl(g) = -349kJ/mol--------->4
Li+ (g)   + Cl-(g)    →   LiCl(s)       lattice energy of LiCl(s) = -829kJ/mol--------->5
H2 (g)   →   2H(g)                           bondenergy of H2     = 432kJ/mol------------>6

dH = 2xeq1 + 2xeq2 - eq6 +2xeq4 + 2xeq5 + 2xeq3

=> dH = (2x166) + (2x427) - 432 + (2x-349) + (2x-829) + (2x520)

=> dH = - 562 kJ

queen_honey_blossom answered 1 year ago

Calculate the sublimation energy for cadmium when given the following information for the reaction Cd(s) +...

Calculate the sublimation energy for cadmium when given the following information for the reaction Cd(s) + ½ O2 à CdO(s) DHf for O 244 kJ/mol Ionization energy for Cd to Cd2+ 2490 kJ/mol electron affinity for O(g) to O2- 598kJ/mol Lattice energy -3688 kJ/mol enthalpy of formation of CdO(s) -254 kJ/mol

ΔE= 2.18×10−18 J What is the change in energy, ΔE, in kilojoules per mole of hydrogen...

ΔE= 2.18×10−18 J What is the change in energy, ΔE, in kilojoules per mole of hydrogen atoms for an electron transition from n=3 to n=2?

Given the following reduction potential for potassium, which statement is correct? Li+ + e- → Li(s)...

Given the following reduction potential for potassium, which statement is correct? Li+ + e- → Li(s) E0 = -3.040 V . Li is a good reducing agent. b. Li+ is a good oxidizing agent. c. Li+ is a good reducing agent. d. Li is a good oxidizing agent.

Given the following thermodynamic data, calculate the lattice energy of CsF: ΔH°f[CsF(s)] = -554 kJ/mol ΔH°sublimation...

Given the following thermodynamic data, calculate the lattice energy of CsF: ΔH°f[CsF(s)] = -554 kJ/mol ΔH°sublimation [Cs] = 76.5 kJ/mol Bond energy [F-F] = 159 kJ/mol IE1 (Cs) = 376 kJ/mol EA1 (F) = -328 kJ/mol -1414 kJ/mol -1493 kJ/mol -714 kJ/mol -758 kJ/mol -837 kJ/mol

Given the following information about a copper (II) chloride solution in water, find the mole fraction...

Given the following information about a copper (II) chloride solution in water, find the mole fraction (of CuCl2), molality (m), molarity (M), new boiling point, and osmotic pressure: Solution is: 8.23 g of CuCl2 dissolved in 1.35 L of water at 25 degrees C (dwater= 1.00 g/mL, new solution d= 1.23 g/mL), kb(H2O) = 0.52 C/m

The energy of light photons varies with wavelength. Calculate the energy per mole of photons for...

The energy of light photons varies with wavelength. Calculate the energy per mole of photons for each of the following colors of visible light. Red Light, λ = 697 nm Green Light, λ = 549 nm Blue Light, λ = 403 nm answer in kJ/mol

What is the energy per mole of photons of light with a wavelength of 812.4 nm?...

What is the energy per mole of photons of light with a wavelength of 812.4 nm? a.) 2.45 x 10^-19 KJ/mol b.) 1.47 x 10^2 KJ/mol c.)4.89 x 10^14 KJ/mol d.) 2.22 x 10^35 KJ/mol e.) 3.69 x10^14 KJ/mol (please show work)

Given the following information for Tribune Corporation, find the WACC. Assume the company s tax rate...

Given the following information for Tribune Corporation, find the WACC. Assume the company s tax rate is 25 percent. Debt: 18,000 bonds outstanding, 6 percent coupon, $1,000 par value, 10 years to maturity, selling for 98 percent of par; the bonds make semiannual coupon payments. Common stock: 250,000 shares outstanding, selling for $30 per share; the beta is 1.60. Market: 7 percent market risk premium and 4.0 percent risk-free rate. 6.97% 7.26% 7.53% 7.84% 8.17%

Consider the sublimation of iodine at 25.0 °C. I2(s) → I2(g) a. Find ΔG°rxn at 25.0...

Consider the sublimation of iodine at 25.0 °C. I2(s) → I2(g) a. Find ΔG°rxn at 25.0 °C. b. Find ΔGrxn at 25.0 °C under the following nonstandard conditions: i. PI2 = 1.00 mmHg ii. PI2 = 0.100 mmHg c. Explain why iodine spontaneously sublimes in open air at 25 °C. 2) Balance the following redox reaction in basic aqueous solution. Cl2(g) → Cl– (aq) + ClO– (aq)

If the bond energy for A2, B2, and A-B is 300, 200 and 100 kJ/mole, respectively,...

If the bond energy for A2, B2, and A-B is 300, 200 and 100 kJ/mole, respectively, the change in energy for the following reaction A2+B2=2A-B should be (in kJ): 500 300 -300 400 -400 Based on Coulomb’s law, when the K+ and Cl- ions are placed 10 nm apart, their interaction energy should be (in J): -2.31x10-19 -2.31x10-20 2.31x10-20 2.31x10-19 -2.31x10-18 Using the energy equation for the H atom, determine its energy when its principal quantum number n=∞ (in J):...

Question