Chemical Composition and Carbonate Ions

The video tutorial explains how to determine the number of atoms in Iron III Carbonate (Fe2(CO3)3). It covers the breakdown of the chemical formula, counting individual atoms, and calculating the number of atoms in one mole using Avogadro's number. Additionally, it discusses the presence of carbonate ions in the compound.

What is the chemical formula for Iron(III) Carbonate?

• FeCO3

• Fe2O3

• Fe2(CO3)3

• Fe3(CO3)2

How many iron atoms are present in Fe2(CO3)3?

• 2

• 4

• 3

• 1

What is the total number of carbon atoms in Fe2(CO3)3?

• 9

• 3

• 2

• 1

How many oxygen atoms are there in Fe2(CO3)3?

• 6

• 3

• 12

• 9

What is the total number of atoms in Fe2(CO3)3?

• 18

• 12

• 14

• 16

How do you calculate the number of atoms in one mole of Fe2(CO3)3?

• Add 6.022 x 10^23

• Divide by 6.022 x 10^23

• Multiply by 6.022 x 10^23

• Subtract 6.022 x 10^23

What is Avogadro's number used for?

• Measuring temperature

• Calculating mass

• Counting atoms in a mole

• Determining volume

What is the charge of a carbonate ion?

• 3-

• 0

• 2-

• 1-

How many carbonate ions are in Fe2(CO3)3?

• 2

• 4

• 1

• 3

What is the formula for a carbonate ion?

• C2O3

• CO2

• CO3

• CO4