Chemistry Mole Concept Worksheet

In chemistry, the mole is an __________.

• animal that lives underground

• a secret agent that provides information to the enemy

• a unit of measure for an amount of something

• a type of growth on the skin that is darker in color

Tags

NGSS.HS-PS1-7

How many "somethings" are in 1 mole?

• a dozen

• 602 million

• 3.14159

Which of the following would represent 1 mole of Carbon?

• 12.011 amu

• 6.02 x 10^23 g

• 12.011g

Tags

NGSS.HS-PS1-7

All of the following represent 1 mole EXCEPT:

• 15.999 g Oxygen

• the molar mass in grams of any element

• 1g of any element

Another name for 6.02 x 10^23 is

• Avogadro's number

• Guacamole's number

• Pi

• Ms. Nich's number

Calculate the molar mass of Na₂SO₄ (Round to nearest whole number)

• 71g

• 142g

• 7g

• 238g

Which of the following conversion factors would be needed to convert from grams to moles?

• 1 mole / 6.02 X 10²³

• 1 mole / ? Molar mass (g)

• 6.02 X 10²³ / 1 mole

• ? Molar mass (g) / 1 mole

How many particles would be found in 0.02993mol of K₂S? Use scratch paper to solve.

• 2.012 X 10²⁵

• 1.8 X 10²⁵

• 1.802 X 10²²

• 9.61 X 10²¹

What is the mass of 0.230mol of Fe₂O₃? Use scratch paper to solve - round to nearest whole number.

• 160g

• 46g

• 37g

• 80g

How many moles are in 45g of KCl? Use scratch paper to solve- round to 1 decimal place.

• 3354.3 mol

• 74.5 mol

• 0.6 X 10^23

• 0.6 mol