Chemical Composition of Copper Phosphate

The video tutorial explains how to determine the number of atoms in the chemical compound Cu3(PO4)2, known as copper(II) phosphate. It begins by identifying the elements present and their respective quantities based on the chemical formula. The tutorial then demonstrates how to calculate the total number of atoms in the compound. Additionally, it covers how to find the number of phosphorus atoms in one mole of copper(II) phosphate using Avogadro's number. The video concludes with a brief summary of the calculations.

What is the chemical formula for copper(II) phosphate?

• Cu3(PO4)2

• Cu2(PO4)3

• Cu(PO4)2

• Cu3(PO3)2

How many copper atoms are present in the formula Cu3(PO4)2?

• 3

• 2

• 1

• 4

What is the total number of oxygen atoms in Cu3(PO4)2?

• 8

• 6

• 4

• 10

How many total atoms are there in one formula unit of Cu3(PO4)2?

• 13

• 12

• 11

• 10

If you have one mole of Cu3(PO4)2, how many phosphorus atoms would you have?

• Avogadro's number

• Twice Avogadro's number

• Half of Avogadro's number

• Four times Avogadro's number

What is the role of Avogadro's number in calculating the number of atoms in a mole?

• It is used to find the density of a mole.

• It is used to find the number of atoms in a mole.

• It is used to find the mass of a mole.

• It is used to find the volume of a mole.