Cobalt(II) Phosphate Composition Questions

The video tutorial explains how to determine the number of atoms in cobalt(II) phosphate, Co3(PO4)2. It begins by identifying the number of cobalt atoms, followed by the phosphate ions. The tutorial then calculates the total number of atoms, resulting in three cobalt, two phosphorus, and eight oxygen atoms, totaling thirteen atoms. The video concludes with a recap of these calculations.

What does the '3' in CO3 indicate in the compound cobalt(II) phosphate?

• The number of cobalt atoms

• The number of phosphorus atoms

• The number of oxygen atoms

• The number of phosphate ions

How many phosphate ions are present in cobalt(II) phosphate?

• One

• Two

• Three

• Four

In the compound cobalt(II) phosphate, how many phosphorus atoms are there?

• Four

• Two

• Three

• One

How many oxygen atoms are present in cobalt(II) phosphate?

• Ten

• Six

• Four

• Eight

What is the total number of atoms in cobalt(II) phosphate?

• Ten

• Eleven

• Twelve

• Thirteen