(a) Account for formation of the following series of oxidesin terms of the electron configurations of the elementsand the discussion of ionic K2O, CaO, Sc2O3, TiO2, V2O5, CrO3. (b) Name these oxides.(c) Consider the metal oxides whose enthalpies of formation(in kJ mol -1) are listed here. Calculate the enthalpy changes in the following general reactionfor each case:MnOm(s) + H2(g)----->nM(s) + mH2O(g)(You will need to write the balanced equation for each caseand then compute ΔH°.) (d) Based on the data given, estimatea value of ΔHf° for Sc2O3(s).
(a) Account for formation of the following series of oxidesin terms of the electron configurations of the elementsand the discussion of ionic K2O, CaO, Sc2O3, TiO2, V2O5, CrO3. (b) Name these oxides.(c) Consider the metal oxides whose enthalpies of formation(in kJ mol -1) are listed here. Calculate the enthalpy changes in the following general reactionfor each case:MnOm(s) + H2(g)----->nM(s) + mH2O(g)(You will need to write the balanced equation for each caseand then compute ΔH°.) (d) Based on the data given, estimatea value of ΔHf° for Sc2O3(s).
Chapter20: The Representative Elements
Section: Chapter Questions
Problem 108IP: Although nitrogen trifluoride (NF3) is a thermally stable compound, nitrogen triiodide (Nl3) is...
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(a) Account for formation of the following series of oxides
in terms of the electron configurations of the elements
and the discussion of ionic
K2O, CaO, Sc2O3, TiO2, V2O5, CrO3. (b) Name these oxides.
(c) Consider the metal oxides whose enthalpies of formation
(in kJ mol -1) are listed here. Calculate the enthalpy changes in the following general reaction
for each case:
MnOm(s) + H2(g)----->nM(s) + mH2O(g)
(You will need to write the balanced equation for each case
and then compute ΔH°.) (d) Based on the data given, estimate
a value of ΔHf° for Sc2O3(s).
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