Understanding Acetate and Related Ions

This video tutorial covers organic polyatomic ions, focusing on acetate, benzoate, cyanide, thiocyanate, and formate. It explains their structures, resonance forms, and formal charges. The tutorial also discusses less common ions like lactate and tartrate, and highlights the importance of understanding these ions in general and organic chemistry contexts.

What is the charge of the acetate ion C2H3O2?

• +2

• -1

• -2

• +1

Which form of acetate is more commonly seen in organic chemistry?

• CH3COOH

• C2H5O-

• CH3COO-

• C2H3O2-

What is the structure of a benzene ring?

• Seven carbons in a hexagon

• Six carbons in a ring with alternating double bonds

• Five carbons in a straight chain

• Four carbons in a square

What is the main difference between cyanate and thio cyanate?

• Cyanate has oxygen, thio cyanate has sulfur

• Cyanate has sulfur, thio cyanate has oxygen

• Cyanate has nitrogen, thio cyanate has carbon

• Cyanate has carbon, thio cyanate has nitrogen

Which ion is similar to acetate but has a hydrogen instead of a methyl group?

• Lactate

• Formate

• Tartrate

• Citry

What is the formula for lactate?

• C3H5O3-

• C6H5O7-

• C2H3O2-

• C4H6O4-

Which of the following is not commonly seen in a general chemistry course?

• Carbonate

• Citry

• Formate

• Benzoate

What happens to the charge of carbonate when a hydrogen is added?

• Increases by one

• Decreases by one

• Doubles

• Remains the same

What is another name for hydrogen carbonate?

• Fulminate

• Bicarbonate

• Carbonate

• Cyanate

In fulminate, which atom is the center compared to cyanate?

• Sulfur

• Carbon

• Oxygen

• Nitrogen