Moles and Mass

Using your periodic Table, calculate the formula mass of CaCO₃.

Answer:

What is the mass of one mole of aluminum?

• 27 g

• 13 g

• 54 g

• 14 g

Molar mass is in units of ________.

• grams

• grams/mole

• mole

• moles/gram

Tags

NGSS.HS-PS1-7

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

What is the molar mass of H₂O?

• 6.02 x 10²³

• 16 grams/mol

• 18 grams/mol

• 15.99999 grams/mol

How many atoms are in 1 mole of NaCl? 

• 6.02 x 10²³

• 58 

• 11

• 17

Tags

NGSS.MS-PS1-1

How many molecules are in 2.5 mol of NaCl?

• 51x10²³

• 146

• 4.15

• 1.51x10²⁴

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 24 molecules

• 180 molecules

• 180 g

• 6.02 x 10²³ molecules

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol

• 35.453 g/mol

• 22.990 g/mol

• 58.443 g/mol

Which has more atoms, 0.1 mole of silver or 1 mole of gold?

• mole of gold

• 0.1 mole of silver

• False, they are the same

• Not enough information

Tags

NGSS.HS-PS1-7