Ammonium Phosphide Chemistry Concepts

The video tutorial explains how to write the chemical formula for ammonium phosphide. It begins by identifying ammonium as a polyatomic ion, NH4+, and phosphide as an ion derived from phosphorus with a 3- charge. The tutorial demonstrates how to balance the charges by using three ammonium ions to match the charge of one phosphide ion, resulting in the formula (NH4)3P. The video concludes with a clean presentation of the final formula.

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

• Memorize the periodic table

• Find phosphide on the periodic table

• Identify ammonium as a polyatomic ion

• Balance the charges

Where can you find the ammonium ion?

• In a chemistry textbook

• On the periodic table

• In a list of polyatomic ions

• In a biology textbook

What is the charge of the ammonium ion?

• 2+

• 1-

• 1+

• 3-

Which element is used to identify the phosphide ion?

• Phosphorus

• Oxygen

• Nitrogen

• Sulfur

What is the charge of the phosphide ion?

• 2-

• 2+

• 3-

• 1+

How many ammonium ions are needed to balance the charge of one phosphide ion?

• One

• Two

• Three

• Four

What is the net charge when the charges of ammonium and phosphide ions are balanced?

• 2-

• 3+

• 1+

• 0

What is the final formula for ammonium phosphide?

• (NH4)3P

• (NH4)2P

• NH4P3

• NH4P

Who is the presenter of the tutorial?

• Dr. C

• Dr. D

• Dr. A

• Dr. B