Chromium and Sulfate Compounds

The video tutorial explains how to name the compound CrSO4. It begins by identifying the sulfate ion (SO4) and the transition metal chromium (Cr). The tutorial details the process of naming the metal and the polyatomic ion, resulting in the name chromium sulfate. It further explains the significance of transition metal charges, highlighting that chromium can have different ionic charges. The tutorial demonstrates how to balance these charges, leading to the correct name chromium 2 sulfate. Finally, it concludes with guidance on writing the chemical formula based on the name.

What is the name of the polyatomic ion in CrSO4?

• Nitrate

• Sulfate

• Carbonate

• Sulfite

What type of metal is chromium in CrSO4?

• Alkali metal

• Alkaline earth metal

• Transition metal

• Noble gas

What is the first step in naming CrSO4?

• Identify the charge of the metal

• Calculate the molecular weight

• Write the name of the metal

• Determine the number of ions

Why is it important to know the charge of chromium in CrSO4?

• To determine the color of the compound

• To correctly name the compound

• To find the melting point

• To calculate the molecular weight

What is the ionic charge of the sulfate ion in CrSO4?

• 1-

• 4-

• 2-

• 3-

How do you indicate the charge of chromium in the name of CrSO4?

• Using a Roman numeral

• Using a suffix

• Using a subscript

• Using a prefix

What is the full name of CrSO4?

• Chromium(IV) sulfate

• Chromium(III) sulfate

• Chromium(II) sulfate

• Chromium sulfate

How many sulfate ions are needed to balance the charge of one chromium ion in CrSO4?

• Four

• One

• Two

• Three