Lewis Structures and Formal Charges

Lewis Structures and Formal Charges

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Liam Anderson

FREE Resource

The video tutorial explains how to determine the formal charge for each element in phosphorus trichloride (PCl3). It begins with an introduction to the concept of formal charge and the importance of using a Lewis structure. The tutorial then provides a detailed explanation of the Lewis structure for PCl3, followed by step-by-step calculations of the formal charge for phosphorus and chlorine. The video concludes by confirming that the calculated formal charges indicate the most favorable Lewis structure for PCl3.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of determining the formal charge in a molecule?

To determine the color of the compound

To identify the best Lewis structure

To calculate the bond length

To find the molecular weight

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of a Lewis structure in chemistry?

It determines the melting point

It represents the arrangement of atoms and electrons

It predicts the color of the compound

It shows the molecular weight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does phosphorus have in PCl3?

Seven

Nine

Five

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of PCl3, what does the term 'unbonded electrons' refer to?

Electrons that determine the color

Electrons shared between atoms

Electrons not involved in chemical bonds

Electrons involved in chemical bonds

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formal charge on phosphorus in PCl3?

-1

+2

0

+1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does chlorine have in PCl3?

Eight

Seven

Six

Five

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formal charge on each chlorine atom in PCl3?

+2

0

-1

+1

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?