Molecular Polarity and Geometry

Front

What is molecular polarity?

Back

Molecular polarity refers to the distribution of electrical charge over the atoms in a molecule. A molecule is polar if it has a net dipole moment due to the presence of polar bonds and an asymmetric shape.

Front

What determines if a molecule is polar or non-polar?

Back

A molecule is polar if it has polar bonds and an asymmetrical shape. It is non-polar if it has non-polar bonds or if the polar bonds are arranged symmetrically.

Front

What is the molecular geometry of H2S?

Back

The molecular geometry of H2S is bent.

Front

What is the shape of a molecule with a trigonal pyramidal geometry?

Back

A molecule with a trigonal pyramidal geometry has a central atom bonded to three other atoms and one lone pair of electrons, creating a pyramid-like shape.

Front

What is the molecular geometry of a molecule with four bonding pairs and no lone pairs?

Back

The molecular geometry is tetrahedral.

Front

What is the significance of lone pairs in determining molecular shape?

Back

Lone pairs occupy space and can repel bonding pairs, affecting the overall geometry of the molecule.

Front

What is the molecular geometry of a molecule with two bonding pairs and two lone pairs?

Back

The molecular geometry is bent.

Front

How does electronegativity affect molecular polarity?

Back

Electronegativity differences between bonded atoms can create polar bonds, contributing to the overall polarity of the molecule.

Front

What is the molecular geometry of a molecule with three bonding pairs and no lone pairs?

Back

The molecular geometry is trigonal planar.

Front

What is a dipole moment?

Back

A dipole moment is a measure of the separation of positive and negative charges in a molecule, indicating its polarity.