Acetate Ion and Ammonium Concepts

The video tutorial explains how to write the chemical formula for ammonium acetate. It begins by identifying the ammonium ion (NH4+) and the acetate ion (CH3COO- or C2H3O2-), both of which are not found on the periodic table but on a table of common polyatomic ions. The tutorial details the process of combining these ions, ensuring their charges cancel out to form a neutral compound, resulting in the formula for ammonium acetate.

What is the first step in writing the formula for ammonium acetate?

• Write the formula for water.

• Find the ammonium ion on the periodic table.

• Memorize the formula for acetate.

• Look up the ammonium ion in a table of common polyatomic ions.

What is the charge of the ammonium ion?

• Neutral

• Variable

• Negative

• Positive

Where can you find the acetate ion?

• On the periodic table

• In a table of common polyatomic ions

• In a chemistry textbook

• In a biology textbook

How is the acetate ion commonly written?

• CH3COO-

• NH4+

• H2O

• CO2

What is the charge of the acetate ion?

• Positive

• Negative

• Neutral

• Variable

What happens to the charges when ammonium and acetate ions combine?

• They both become negative.

• They remain unchanged.

• They both become positive.

• They cancel each other out.

What is the net charge of ammonium acetate?

• Variable

• Negative

• Positive

• Zero

Which of the following is an alternative way to write the acetate ion?

• C2H3O2-

• NH4+

• H2O

• CO3-

What is the final formula for ammonium acetate?

• NH4CO3

• NH4CH3COO

• NH4C2H3O2

• NH4OH

Who is the presenter of the video?

• Dr. C

• Dr. B

• Dr. A

• Dr. D