Chromium(III) Acetate Concepts

The video tutorial explains how to write the formula for chromium(III) acetate. It begins by identifying the element symbol for chromium and its charge. The acetate ion is introduced as a polyatomic ion, and its formula is given. The tutorial then explains how to balance the charges between chromium and acetate ions to form a neutral compound. Finally, the complete formula for chromium(III) acetate is presented, along with an alternative notation for the acetate ion.

What is the element symbol for chromium in Chromium(III) Acetate?

• Cm

• Ch

• Cr

• Co

What does the Roman numeral III indicate in Chromium(III) Acetate?

• The atomic number of chromium

• The number of acetate ions

• The charge of the chromium ion

• The number of electrons in chromium

Which of the following is a correct representation of the acetate ion?

• CH3COO-

• CH4COO-

• C2H5O-

• C2H3O3-

Why is the acetate ion not found on the periodic table?

• It is a polyatomic ion

• It is a noble gas

• It is a transition metal

• It is a non-metal

How many acetate ions are needed to balance the charge of one chromium ion in Chromium(III) Acetate?

• Three

• Four

• Two

• One

What is the overall charge of Chromium(III) Acetate?

• Variable

• Neutral

• Negative

• Positive

What is the correct formula for Chromium(III) Acetate?

• CrC2H3O2

• Cr3(CH3COO)2

• Cr2(CH3COO)3

• Cr(CH3COO)3

Which alternative representation of the acetate ion is equivalent to CH3COO-?

• C2H5O2-

• CH3COOH-

• C2H4O2-

• C2H3O2-