Iron III Chromate Concepts

The video tutorial explains how to write the chemical formula for Iron(III) Chromate. It begins by identifying the symbols and charges of iron and chromate ions. The tutorial then demonstrates the crisscross method to balance the charges, resulting in the formula Fe2(CrO4)3. The process is verified by ensuring the net charge is zero. The video concludes with a brief summary and thanks to the viewers.

What is the charge of iron in Iron III Chromate?

• 4+

• 3+

• 2+

• 1+

What does the suffix '-ate' in chromate indicate?

• It's a halogen

• It's a noble gas

• It's a polyatomic ion

• It's a metal

What is the chemical formula for the chromate ion?

• CrO3

• CrO4

• Cr2O7

• CrO2

How do you balance the charges in Iron III Chromate?

• By adding more iron atoms

• By using the crisscross method

• By changing the charge of chromate

• By adding electrons

What is the purpose of using parentheses in the formula for Iron III Chromate?

• To balance the equation

• To show the charge of iron

• To group the chromate ions

• To indicate the number of iron atoms

What is the final formula for Iron III Chromate?

• Fe(CrO4)2

• Fe3(CrO4)2

• Fe2(CrO4)3

• FeCrO4

How do you verify the formula for Iron III Chromate?

• By counting the number of atoms

• By measuring the mass

• By ensuring the charges balance to zero

• By checking the periodic table

What is the net charge of Iron III Chromate?

• +1

• 0

• -1

• +2