Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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- Consider an element that reaches its first excited state by absorption of 626.7 nm light. Determine the energy difference in kilojoules per mole between the ground state and the first excited state. ΔΕ = If the degeneracies of the two states for the element are g'/go= 2, determine N°/No at 2010 K. N° No By what percentage does N°/No change if the temperature is raised by 20 K? percentage: What is N°/No at 5370 K? N* No kJ/molarrow_forwardLight of frequency 1.05 x 10^15 Hz. What is the ionization energy in J-mol-1arrow_forward2.arrow_forward
- what are likely possibilies for X if Xn + Cl -> XCl2 can you help explain how to solve this? Would it be any element in the 2nd s2 row (Be, Mg, Ca, Sr, Ba, Ra)?arrow_forwardConsider an element that reaches its first excited state by absorption of 570.0 nm light. Determine the energy difference in kilojoules per mole between the ground state and the first excited state. ΔΕΞ kJ/mol If the degeneracies of the two states for the element are g*/go = 3, determine N*/INo at 2030 K. N* No By what percentage does N*/No change if the temperature is raised by 20 K? percentage: What is N*/N, at 5810 K? N* Noarrow_forwardDescribe and account for the variation of first ionizationenergies along Period 2 of the periodic table . Would you expect the same variation in Period 3?arrow_forward
- The energy levels of hydrogenlike one-electron ions of atomic number Z differ from those of hydrogen by a factor of Z2. Predict the wavelength of the 2s ->1s transition in He+.arrow_forwardWhat are the possible magnetic quantum numbers (m2) associated with each indicated value of e? When e = 2, mẹ = O -2, -1, 1,2 -2, -1,0, 1,2 -2, 2 O 0, 1,2 When e = 4, mẹ = O-4, 4 -4,-3, -2, -1, 1, 2, 3, 4 O -4, -3, -2, -1,0, 1, 2, 3, 4 O 0, 1,2, 3, 4arrow_forwardDetermine the second ionization energy of calcium (in kJ mol−1) from the given data (all in kJ mol−1):ΔHf°[CaCl2(s)] = −796ΔHf°[Ca(g)] = 178ΔHf°[Cl(g)] = 122First ionization energy of Ca(g) = 590Electron affinity of Cl(g) = −349Lattice enthalpy of CaCl2(s) = −2260 a)1150 b)1235 c) 1093 d) 1210arrow_forward
- Give the general formula for atomic configuration of p block elements? Give examples of elements having three unpaired p electrons.arrow_forwardRank the following chemical species in order of decreasing size (radius) with the largestlabelled 1 and the smallest labelled 7:RbСІCsCs-ICl+ Mn23+arrow_forward13) The following is an electron transfer reaction between two atoms: Ag + O ----> Ag2+ + O2- Which pair of sets of quantum numbers (n,l,ms) describe the initial and final orbitals of the SECOND transferred electron, respectively? Select one: a. From (2,0, -1/2) to (5,1, +1/2) b. From (4,2, 1/2) to (2,1, 1/2) c. From (2,1,-1/2) to (4,2,-1/2) d. From (5,0, -1/2) to (2,1, -1/2) e. From (5,2,+1/2) to (2,1,+1/2)arrow_forward
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