QQuestionChemistry
QuestionChemistry
Please show work.
Lewis Dot Structure:
Electron Pair Geometry
Molecule Shape
Polar/Nonpolar
For H^2Se:
1)
i) What type of intermolecular forces are between molecules of H^2Se? Explain WHY.
ii) Which would have the higher boiling point, H^2Se or H^2O? Explain WHY.
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Answer
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Step 1I'll solve this step by step, focusing on the Lewis dot structure and intermolecular forces for H^2Se.
Step 2: Lewis Dot Structure Analysis
- Total valence electrons: $$6 + (2 \times 1) = 8$$ electrons
- Selenium (Se) is in Group 16 (VIA), has 6 valence electrons - Hydrogen (H) has 1 valence electron - Central atom is Se - Structure will be H-Se-H with two lone pairs on Se
Final Answer
i) Intermolecular forces: Primarily London dispersion forces ii) H^2O would have the higher boiling point due to strong hydrogen bonding
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