Mole

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 10²³
• 6.02 x 10²²
• 6,020,000,000,000

Tags

NGSS.HS-PS1-7

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 

What is the difference between the atomic mass of an element and the molar mass of a compound?

• The atomic mass is the added sum of ALL of the elements

• The molar mass can be either the added sum of ALL the masses or the mass of a particular element

• The molar mass and the atomic mass are always the same

• The atomic mass of a compound is the average of H₂O

Why is the mole used to measure the atom?

• Atoms are extremely tiny particles, and their size varies from element to element

• Atoms are all the same size for every element

• Some atoms cannot be counted using the mole

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-7

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

What is this number called?

• Avocado's Number

• Avogadro's Number

• Mendeleev's Number

• The mole

The mole can be used to measure (SELECT ALL CORRECT ANSWERS)

• The amount of atoms

• The amount of molecules or compounds in a substance

• The amount of particles

• The amount of fission or fusion decay over time

Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1