Barium Acetate and Related Concepts

The video tutorial explains how to write the formula for barium acetate. It begins by identifying barium and acetate, noting that acetate is a polyatomic ion. The tutorial shows two ways to write the acetate ion formula and explains how to determine the ionic charge of barium from the periodic table. It then demonstrates how to balance the charges to form a neutral compound, barium acetate, and discusses alternative ways to represent the formula.

What is the symbol for barium?

• Be

• Bi

• Br

• Ba

Which of the following is NOT a way to write the acetate ion?

• C2H4O2-

• CH3CO2-

• C2H3O2-

• CH3COO-

What is the charge of barium when it forms an ion?

• 0

• 2+

• 1+

• 3+

Which group is barium found in on the periodic table?

• Group 1

• Group 4

• Group 3

• Group 2

How do you balance the charges in barium acetate?

• Use parentheses and a subscript

• Add more acetate ions

• Change the charge of acetate

• Add more barium ions

What is the net charge of barium acetate?

• 2-

• 3+

• 0

• 1+

What is the purpose of using parentheses in the formula of barium acetate?

• To indicate a mistake

• To show the charge of barium

• To indicate a polyatomic ion

• To separate barium and acetate

Why might barium appear after the acetate ion in some representations?

• It is a mistake

• It is a convention for all compounds

• Barium is more reactive

• Acetate comes from acetic acid

What happens to acetic acid when it forms acetate?

• It loses an oxygen

• It gains an oxygen

• It loses a hydrogen

• It gains a hydrogen

Which of the following is a correct formula for barium acetate?

• Ba2(CH3COO)

• BaC2H3O2

• BaC2H4O2

• Ba(CH3COO)2