Mole and Molar Mass

What is the mole used for? 

• To measure the amount of grams in a substance
• To measure the amount of atoms or molecules in a substance
• To measure the amount of energy in a substance
• To measure the amount of bonding in a substance 

What is Avogadro's Number?

• 6.02 x 10²³

• - 6.02

• 6.02 x 10²²

• 6,020,000,000,000

What is the molar mass of H₂O?

• 6.02 x 10²³
• 16 grams
• 18 grams
• 15.99999 grams

What is the molar mass NaCl?

• 58 grams
• 22.95 grams
• 162 grams
• 6.02 x 10²³

The mole is a...

• Unit to measure the amount of atoms in a substance

• Unit to measure distance

• Unit to measure time of atomic decay

• Unit used to measure the size of each atom in a substance

In chemistry, a "mole" is:

• The mass of an atom
• a large number used to count particles
• based on the volume of a substance

How many atoms of iodine are in a mole of iodine?

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

Tags

NGSS.MS-PS1-1

What is the molar mass of C₂H₄O₂?

• 40g
• 50g
• 60g
• 68g

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

What is the molar mass of molecule N₂?

• 14.01 amu

• 14.01 g

• 28.02 g

• 28.02 amu