Cobalt Acetate and Acetate Ion Concepts

The video tutorial explains how to write the formula for Cobalt 2 acetate. It begins by identifying the element symbol for Cobalt and explains the significance of the Roman numeral indicating a 2+ charge. The acetate ion, a polyatomic ion with a 1- charge, is introduced, and viewers are advised to memorize or look it up. The tutorial emphasizes that Cobalt acetate is a neutral compound, requiring the charges to balance to zero. The video concludes by presenting the final formula and noting different ways the acetate ion can be written.

What does the Roman numeral 2 indicate in Cobalt 2 acetate?

• The atomic number of Cobalt

• The number of acetate ions

• The charge of the Cobalt ion

• The number of Cobalt atoms

Which of the following is true about the acetate ion?

• It is a single atom ion

• It is a polyatomic ion

• It has a charge of 2+

• It is found on the periodic table

What is the chemical formula for the acetate ion?

• CH3COO-

• CO3 2-

• NH4+

• SO4 2-

How do you ensure that Cobalt 2 acetate is a neutral compound?

• By balancing the charges of Cobalt and acetate ions

• By adding more Cobalt ions

• By adding more acetate ions

• By changing the charge of the acetate ion

Why are parentheses used in the formula for Cobalt 2 acetate?

• To group the acetate ions together

• To indicate the number of Cobalt atoms

• To show the charge of the acetate ion

• To separate different elements

Which of the following is a correct way to write the acetate ion?

• None of the above

• Both A and B

• C2H3O2-

• CH3COO-

What is the final formula for Cobalt 2 acetate?

• Co(CH3COO)2

• Co2(CH3COO)3

• Co(CH3COO)3

• Co2(CH3COO)2