Hydrogen Fluoride Concepts

The video tutorial explains how to draw the Lewis structure for hydrogen fluoride (HF), also known as hydrofluoric acid when in water. It begins by calculating the total number of valence electrons using the periodic table, identifying that hydrogen has one valence electron and fluorine has seven, totaling eight valence electrons. The tutorial then guides viewers through the process of drawing the Lewis structure, emphasizing the formation of a covalent bond and the completion of the octet for fluorine. The video concludes by discussing the linear molecular geometry of HF and its bond angle of 180 degrees.

What is the alternative name for HF when it is dissolved in water?

• Hydrofluoric acid

• Hydrochloric acid

• Sulfuric acid

• Nitric acid

How many valence electrons does Hydrogen contribute to the HF molecule?

• 2

• 1

• 3

• 4

Which group in the Periodic Table does Fluorine belong to?

• Group 2

• Group 7A

• Group 1

• Group 6A

What type of bond is formed between Hydrogen and Fluorine in HF?

• Covalent bond

• Hydrogen bond

• Metallic bond

• Ionic bond

How many valence electrons are used in the Lewis structure of HF?

• 6

• 7

• 8

• 9

What is the molecular geometry of HF?

• Bent

• Tetrahedral

• Trigonal planar

• Linear

What is the bond angle in the HF molecule?

• 90 degrees

• 120 degrees

• 180 degrees

• 109.5 degrees