Evaluate the overall energy change in kilojoules per mole

Assignment Help Chemistry
Reference no: EM13337797

Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed: (a) Eea for CL(g) = -348.6kj/mol. (b) Ei1 for Ca(g) = +589.8kj/mol. (c) Ei2 for Ca(g) = +1145kj/mol. Heat of sublimation for Ca(s) = +178.2kj/mol. Bond dissociation energy for Cl2(g) = +243kj/mol. Lattice energy for CaCL2(s) = +2258kj/mol. Lattice energy for CaCL(s) = +717kj/mol (estimated)

Reference no: EM13337797

Questions Cloud

Is natasha risk loving risk neutral : Suppose that Natasha’s utility function is given byu(I) = 10I, where I represents annual income in thousands of dollars.
How to calculate delta g for the reaction : Calculate delta G for the reaction when the partial pressures are PH2 = 0.25atm, PCO2 = 0.81atm, PH2O = 0.62atm, and PCO = 1.20 atm.
State the substance in the solution estimate the molar mass : When 1.1g of a nonvolatile substance is added to 45.5g of benzene, the vapor pressure decreased from 97.0 to 95.7 tor. From the mol fraction of the substance in the solution estimate the molar mass of the compound
Explain treatment of a with aqueous h2so4 : Treatment of A with aqueous H2SO4 and Hg(II) gives a single ketone, C, C10H16O. Oxidation of A with KMnO4 gives CO2 and the keto carboxylic acid D shown below. Propose a structure for A.
Evaluate the overall energy change in kilojoules per mole : Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed
Define which of the following species has the largest radius : What difference do the + and - make? do you add/subtract protons? Which of the following species has the largest radius. A. Li+ B. Na+ C. K+ D. Ar E. Cl-
State what is the concentration of ni2 ions : A 0.150-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
Define how many grams of glucose are needed to prepare : How many grams of glucose are needed to prepare 400 g of 2% m/m glucose solution. 2) how many moles of cacl2 are in 250 ml of a 3 m of cacl2 solution 3) How many liters of oxygen gas form when 294 g of KClO3 completely react in the following react..
Define what is the calculated molecular weight of the gas : It takes a certain gas 1.98 times as long to diffuse as an equal volume of helium under the same conditions. what is the calculated molecular weight of the gas

Reviews

Write a Review

Chemistry Questions & Answers

  What must the minimum temperature of its energy source

What must the minimum temperature of its energy source be if it is to produce work with an efficiency of 0.75?

  Compute the change in temperature

An ice cube of 15.1 grams is placed into 304 grams of H 2 O. compute the change in temperature in the H 2 O upon completing melting of the ice.

  Explain the salt begins to precipitate

A solution is 0.050 M in K2SO4 and 0.050 M in K2CrO4. A solution of Pb(NO3)2 is slowly added to this solution (without much change in volume).

  Explain mechanism for all steps in the addition of hbr

Write a detailed, stepwise mechanism for all steps in the addition of HBr to 1-pentene in the presence of peroxide. Show all intermediates and use cuved arrows as appropraite.

  Compute the total mass of sodium chloride

If the volume of ocean water 5.4*10^20) contains 4.1 percent sodium chloride ("salt") by mass and the density of the water is 1.86 g/mL, calculate the total mass of sodium chloride.

  Compute the ph of the solution made by adding hobr

Calculate the pH of the solution made by adding 0.50 mol of HObr in 0.30 mol of KOBr to 1.00 L of water. The value of Ka for HObr is 2.0 * 10^-9

  Determine the value of the standard free energy change

At 25C, H2O2 decomposes according to the following equation. 2H2O2(aq) => 2H2O (l) + O2(g) .55V

  Compute the temperature of the gas mixture

If the volume of the container is reduced to 15.0 L and the pressure remains at 760 mm Hg total pressure. Calculate the temperature of the gas mixture

  Compute the number of kilograms of hydrogen

The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour (in kg/h) through a 4.7 mm thick sheet of palladium having an area of 0.25 m2 at 500°C.

  How many grams of water could be vaporized

giving that water has a molar enthlphy of vaporization of 40.79 kJ/mol, how many grams of water could be vaporized by 623 J

  What is the molality of a solution

What is the molality of a solution that is composed of 265 g of acetone ((CH3)2CO) dissolved in 177 g of water.

  Explain an electron is a reactant

Which statement is true in regards to a half reaction in which reduction occurs? A)An electron is a product. B) An electron is a reactant. C) An electron is both a reactant and a product. D) Oxidation also occurs. E) None of the above

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd