AP Chemistry Chapter 9 Worksheet

AP Chemistry Chapter 9 Worksheet - APChemistryChapter9...

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AP Chemistry Chapter 9 Supplemental Worksheet Name: _______________________________ Date: _____________ Period: _____ 1. Which of the following ions have noble‐gas electron configurations? What are the electron configurations of the ions that do not? a. Cr 3+ b.Sc 3+ c . Z n 2+ d.Te 2‐ e.Zr 4+ f.Cu + 2. Use Lewis symbols to represent the following ionic compounds. a. KI b. barium fluoride c. Rb 2 S d. aluminum oxide 3. The lattice energy of sodium fluoride is ‐914kJ/mol NaF. Determine the enthalpy of formation of NaF (s) . Compare your result with the published value of ‐573.7 kJ/mol. 4. The enthalpy of formation of cesium bromide is C s (s) + ½ Br 2(l) → CsBr (s) H o f = ‐405.9kJ/mol The enthalpy of sublimation of cesium is 76.1kJ/mol, and the enthalpy of vaporization of liquid bromine is Br 2(l) → Br 2(g) H o = 30.9kJ/mol Calculate the lattice energy of CsBr (s) 5. Write Lewis structures for the simplest covalent molecules formed by the following atoms, assuming that the octet rule (duet rule for hydrogen) is followed in each case. a. P and H
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AP Chemistry Chapter 9 Worksheet - APChemistryChapter9...

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