Draw the lewis structure for ch3+

Asked by maham237 @ in Chemistry viewed by 381 People

Predict the molecular geometry for each. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp T-shaped square pyramidal tetrahedral linear trigonal bipyramidal seesaw square planar trigonal pyramidal octahedral bent trigonal planar The molecule BrO2− has a(n) The molecule B r O 2 − has a(n) blank molecular geometry. molecular geometry. The molecule ClO3− has a(n) The molecule C l O 3 − has a(n) blank molecular geometry. molecular geometry. The molecule CH3+ has a(n) The molecule C H 3 + has a(n) blank molecular geometry. molecular geometry. The molecule BrF3 has a(n) The molecule B r F 3 has a(n) blank molecular geometry. molecular geometry. The molecule XeF2 has a(n) linearThe molecule X e F 2 has a(n) blank molecular geometry. molecular geometry. The molecule AsF3 has a(n) The molecule A s F 3 has a(n) blank molecular geometry. molecular geometry.

Answered by maham237 @


Answer:

BrO2-bent

ClO3−trigonal pyramidal

CH3+trigonal planar

BrF3 T-shaped

XeF2 linear

AsF3. trigonal pyramidal

Explanation:

For BrO2-, there are two shapes possible for any three atom molecule; linear or bent. In this case, starting with 7 electrons around a Br atom and at least two formal bonds it is safe to say that it will be bent because there will have to be an accommodated one lone pair on the central atom Br.

Based on VSEPR Theory the electron clouds on atoms and lone pair of electrons around the central Cl atom will repel each other. As a result they will be pushed apart giving the ClO3- molecule a trigonal pyramidal geometry or shape.

Carbon has 4 valence electrons. But in CH3+, a positive charge makes the number of available electrons 3. Hence carbon forms 3 single bonds with H to form a planar structure with sp2 hybridization.

BrF3 contains three bonded and two nonbonded electron domains, giving a trigonal bipyramidal electron domain geometry and a T shaped molecular geometry. The bond angles are compressed relative to those ones in a perfect trigonal bipyramid due to lone pairs spreading out more in space than bonded pairs.

XeF2 has 22 valence electrons, out of which there are three lone pairs of electrons. Its hybridization is sp3d. According to the VSEPR theory, The molecular geometry of the molecule is linear. The bond angle of F-Xe-F is 180 degrees.

The molecule AsF3 has four electron domains around the central atom. Hence the electron domain geometry is Tetrahedral. As there is one non bonded electron pair, the molecular geometry is thus Trigonal pyramidal.


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