QQuestionChemistry
QuestionChemistry
Use VSEPR theory to predict the molecular geometry of bromate ion, BrO^3−
Trigonal-pyramidal
Trigonal-planar
Tetrahedral
T-shaped
Trilateral
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Answer
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Step 1I'll solve this problem using VSEPR theory step by step:
Step 2: Determine the central atom and valence electrons
- Total valence electrons: $$7 + (3 \times 6) + 1 = 26$$ electrons
- The central atom is Bromine (Br) - Bromine is in Group 17 (VIIA), so it has 7 valence electrons - The bromate ion (BrO^3−) has a - 1 charge
Final Answer
The key reasoning is the presence of 4 total electron domains (3 bonding, 1 lone pair) around the central bromine atom, which leads to a trigonal-pyramidal molecular geometry according to VSEPR theory.
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