Calculating Molar Mass of Compounds

The video tutorial explains how to calculate the molar mass of zinc nitrate using the periodic table. It begins by identifying the atomic weights of zinc, nitrogen, and oxygen. The tutorial then demonstrates the calculation process, including the use of parentheses to handle multiple atoms of an element. Finally, the video concludes with the final molar mass result of zinc nitrate.

What is the molar mass of zinc as found on the periodic table?

• 48.00 grams per mole

• 14.01 grams per mole

• 65.38 grams per mole

• 16.00 grams per mole

How many oxygen atoms are considered in the calculation for zinc nitrate?

• Four

• One

• Two

• Three

What is the total mass of three oxygen atoms in the calculation?

• 16.00 grams

• 32.00 grams

• 48.00 grams

• 64.00 grams

What operation is performed after adding the mass of nitrogen and oxygen in the calculation?

• Subtract 2

• Multiply by 2

• Divide by 2

• Add 2

What is the final molar mass of zinc nitrate?

• 48.00 grams per mole

• 65.38 grams per mole

• 189.40 grams per mole

• 14.01 grams per mole