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Molecular Geometry of Propane

Molecular Geometry of Propane

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Mia Campbell

FREE Resource

The video tutorial explores the molecular geometry of propane (C3H8), focusing on the central carbon atom. It begins with the Lewis structure and examines the steric number, which is four due to the four groups attached to the central carbon. The absence of lone pairs results in a tetrahedral molecular geometry with bond angles of 109.5 degrees. The tutorial visually demonstrates the arrangement of hydrogen and methyl groups around the central carbon, highlighting the symmetrical nature of the molecule. The video concludes with a summary of the tetrahedral geometry for all carbon atoms in propane.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in analyzing the molecular geometry of propane?

Measuring the molecular weight

Identifying the bond angles

Starting with the Lewis structure

Counting the number of hydrogen atoms

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many groups are attached to the central carbon atom in propane?

Two

Three

Four

Five

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the steric number of the central carbon atom in propane?

Four

Five

Two

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of molecular geometry does the central carbon atom in propane exhibit?

Bent

Linear

Trigonal planar

Tetrahedral

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the bond angle associated with a tetrahedral molecular geometry?

90 degrees

180 degrees

120 degrees

109.5 degrees

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are the hydrogen and methyl groups arranged around the central carbon atom in propane?

Clustered on one side

In a square planar arrangement

Spread out in a tetrahedral shape

In a straight line

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molecular geometry of the carbon atoms at the ends of the propane molecule?

Linear

Trigonal planar

Tetrahedral

Bent

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