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Chapter 18 Solutions
Physical Chemistry
- What is the electron configuration of Al 3* ? O (Ne) 4s2 3p! O (Nc|4s? O (Ar) O (Nc] O (Nc) 25? 3p!arrow_forwardThe standard formation enthalpy of KCl is -571 kJmol-1. Plot the Born-Haber cycle and calculate the electron affinity of chlorine with the help of the data below. ΔH°a(K) = 89 kJmol-1 BE(Cl-Cl) = 244 kJmol-1 IE(K) = 425 kJmol-1ΔHL(KCl) = 719 kJmol-1arrow_forwardPlease send me the question in 20 minutes it's very urgent plz findarrow_forward
- Calculate the fraction of atom sites that are vacant for lead (Pb, Z = 82) at its melting temperature (327 degrees C). Assume that the energy for vacancy formation is 0.55 eV/atom. Calculate the fraction of vacant sites at room temperature (25 degrees C). What is the ratio of these two values?arrow_forwardWhat intrisic properties we can take from this graph?arrow_forwardArrange the following ions in order of increasing อ ionic radius Cesium ion, iodide ion, telluride ion, barium ion. Smallest Largest Cst | Ba²+ | Te ²- | I- Ва 24 с. Sarrow_forward
- in ne taist ME He Pa Example 4. Why do the transition elements exhibit higher enthalpies of atomisation? ( DA Try percet HOarrow_forwardCarbon has electronic configuration 1s2 2s2 2p2 . How will you justify its tetravalency?arrow_forwardGroup the electronic configurations of neutral elements in sets according to those you would expect to show similar chemical properties. Note that as long as the configurations are grouped correctly with regard to each other, it does not matter each group. Set A Set B Answer Bank 1s 1s 2 2p² 1s 25 2p 3s23p 6p² 1s 2s 2p 3s 3p®4s² 1. 22 1s 25 2p 3s²3p 25 A stvarrow_forward
- Photoelectron spectroscopy applies the principle of the photoelectric effect to study orbital energies of atoms and mol ecules. High-energy radiation (usually UV or x-ray) is absorbed by a sample and an electron is ejected. The orbital energy can be calculated from the known energy of the radiation and the mea sured energy of the electron lost. The following energy differences were determined for several electron transitions: ∆E2→1 = 4.098x10-17 J ∆E3→£1 = 4.854x10-17 J ∆E5→1 = 5.242x10-17 J ∆E4→2 = 1.024x10-17 J Calculate ∆E and l of a photon emitted in the following transitions: (a) level 3 → 2; (b) level 4 → 1; (c) level 5→4.arrow_forwardThe standard formation enthalpy of KCl is -571 kJmol-1. Plot the Born-Haber cycle and calculate the electron affinity of chlorine with the help of the data below. ΔH ° a (K) = 89 kJmol-1 BE (Cl-Cl) = 244 kJmol-1 IE (K) = 425 kJmol-1 ΔHL (KCl) = 719 kJmol-1arrow_forwardesc →> Docun X 77°F Mostly cloudy ? W 2 Argum X https://app.101edu.co 3+ Use Coulomb's law to calculate the energy in aJ of the following ions to their equilibrium ion-pair separation distance: Fe³+ with radius 55 pm and P3 with a radius of 212 pm. # Life: Th X 13 * 3 f4 $ 101 223.pd X M MyOpe X 4 f5 % Q 5 D21 Home X Feedbe X Archive | Login A1 f6 Question 6 of 35 6 E hp & 7 18 * 00 19 D W 1 4 hoarrow_forward
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