Calculating Molar Mass Effectively

This video tutorial explains the concept of molar mass, which is measured in grams per mole. It begins by examining the molar mass of individual elements like aluminum and nitrogen using the periodic table. The tutorial then demonstrates how to calculate the molar mass of compounds such as aluminum sulfide, barium hydroxide, and aluminum sulfate, emphasizing the use of a periodic table and calculator. The video also highlights the importance of understanding subscripts and parentheses in chemical formulas.

What is the unit of molar mass?

• Grams per liter

• Grams per mole

• Moles per gram

• Liters per mole

What is the molar mass of aluminum as per the video?

• 14.01 grams per mole

• 32.06 grams per mole

• 26.98 grams per mole

• 13 grams per mole

Which number on the periodic table represents the molar mass of an element?

• The number above the symbol

• The number below the symbol

• The atomic number

• The number of protons

How many grams are in one mole of nitrogen?

• 32.06 grams

• 1.008 grams

• 14.01 grams

• 26.98 grams

What is the molar mass of aluminum sulfide?

• 53.96 grams per mole

• 96.18 grams per mole

• 150.14 grams per mole

• 170.33 grams per mole

How many aluminum atoms are in aluminum sulfide?

• 4

• 1

• 2

• 3

What is the atomic mass of barium used in the video?

• 32.06

• 1.008

• 137.33

• 15.99

How many oxygen atoms are in barium hydroxide?

• 4

• 3

• 2

• 1

What is the molar mass of aluminum sulfate?

• 150.14 grams per mole

• 170.33 grams per mole

• 342.02 grams per mole

• 191.88 grams per mole

How many oxygen atoms are in aluminum sulfate?

• 12

• 10

• 8

• 6