Which Molecule is More Polar: Br2 or HBr?

In summary, molecular shapes in chemistry refer to the three-dimensional arrangement of atoms in a molecule, which is determined by the number of bonding and non-bonding electron pairs around the central atom. This can be determined using VSEPR theory, which states that electron pairs will arrange themselves to achieve the most stable shape. Molecular shape is different from molecular geometry, as it specifically refers to the bond angles and lengths between atoms. The most common molecular shapes are linear, bent, trigonal planar, tetrahedral, and trigonal bipyramidal, and they can affect a molecule's properties by influencing its polarity, which in turn affects its physical and chemical properties.
  • #1
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1. Determine the shapes of Br2 (2 Bromine atoms) and HBr. Which is more polar and why?



2. No equations.



3. Okay, I know that Br2 and HBr molecule shapes are linear (I know how to draw them) but I do not get how to find which one is more polar. :confused:
 
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  • #2
Hint: which way do dipoles point?
 
  • #3
Okay, I have the answer.
 

FAQ: Which Molecule is More Polar: Br2 or HBr?

What are molecular shapes in chemistry?

Molecular shapes in chemistry refer to the three-dimensional arrangement of atoms in a molecule. This arrangement is determined by the number of bonding and non-bonding electron pairs around the central atom.

How do you determine the molecular shape of a molecule?

The molecular shape of a molecule can be determined using VSEPR theory, which states that electron pairs around a central atom will arrange themselves to minimize repulsion and achieve the most stable shape. The number of electron pairs around the central atom will determine the molecular shape.

What is the difference between molecular shape and molecular geometry?

In chemistry, molecular shape refers to the overall three-dimensional arrangement of atoms in a molecule, while molecular geometry specifically refers to the bond angles and lengths between atoms in a molecule.

What are the most common molecular shapes in chemistry?

The most common molecular shapes in chemistry are linear, bent, trigonal planar, tetrahedral, and trigonal bipyramidal. These shapes can occur in both organic and inorganic molecules.

How do molecular shapes affect a molecule's properties?

Molecular shapes can affect a molecule's properties by influencing its polarity, which in turn affects its physical and chemical properties. For example, polar molecules tend to have higher boiling points and are more soluble in polar solvents, while nonpolar molecules tend to have lower boiling points and are more soluble in nonpolar solvents.

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