Phosphate Ion and Tin Compounds

The video tutorial explains how to name the compound Sn3(PO4)4. It starts by identifying the metal, tin, from the periodic table. Next, it recognizes the polyatomic ion, phosphate, and explains the need to determine the charge of the transition metal tin. The tutorial calculates the charge using the phosphate ion's charge and the number of ions present. Finally, it demonstrates how to write the compound's name, tin(IV) phosphate, using Roman numerals to indicate the charge of the tin.

What is the first step in naming the compound Sn3(PO4)4?

• Determine the number of phosphate ions

• Write the name of the metal as it appears on the periodic table

• Identify the charge of the metal

• Calculate the total charge of the compound

What is the charge of the phosphate ion in Sn3(PO4)4?

• 3-

• 1-

• 2-

• 4-

How many phosphate ions are present in Sn3(PO4)4?

• Four

• Five

• Three

• Two

What is the total negative charge contributed by the phosphate ions in Sn3(PO4)4?

• 12-

• 15-

• 9-

• 6-

What Roman numeral is used to indicate the charge of tin in Sn3(PO4)4?

• V

• IV

• III

• II

If given the name 'tin(IV) phosphate', what charge does the tin have?

• 3+

• 2+

• 5+

• 4+

Why is it important to balance the charges when writing the formula for a compound?

• To ensure the compound is stable

• To make the compound more reactive

• To decrease the compound's melting point

• To increase the compound's solubility