Avogadro's Number

The number 6.02 x 10²³ is called...

• Obama's number

• Bohr's number

• Avogadro's number

• None of the above

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

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

Tags

NGSS.HS-PS1-7

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆? 

• 1 mole = 78.12 g
• 1 mole = 22.4 L 
• 1 mol = 6.02x 10²³ particles 
• more than one

CALCULATE: How many atoms are in 3.4 moles of silver, Ag?

• 6.02 x10²³

• 2.04 x10²⁴

• 5.65 x10^-24

• 6.02 x 10²⁴

How many Carbon atoms are in one mole of Carbon?

• 6.02 x 10²³
• 1
• 12
• not enough information

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 

How many atoms are in 1 mole of NaCl? 

• 6.02 x 10²³
• 58 
• 11
• 17

Tags

NGSS.HS-PS1-7

How are the mole and atomic masses of elements related?  

• The atomic mass of any substance is always equal to 1 mole of that substance 
• The atomic mass added up with itself by 6.02 x 10²³ equals the amount of atoms
• The atomic mass is the amount of protons plus number of atoms
• Atoms combined make up molecules, which are the measurement of atomic masses