Mole Chalk Lab

How many formula units (f.u.) were used during the chalk sidewalk/quiz or drawing?

• 0.012 formula units

• 6.62 x 10²¹ formula units

• 7.22 x 10²¹ formula units

• 0.045 formula units

What is the molar mass of calcium carbonate (chalk)?

• 100 g/mol

• 50 g/mol

• 200 g/mol

• 150 g/mol

In a mole chalk lab, if you start with 5 moles of calcium carbonate, how many grams of calcium carbonate do you have?

• 500 g

• 100 g

• 250 g

• 300 g

What is the chemical formula for chalk?

Tags

NGSS.MS-PS1-1

If you have 1 mole of chalk, how many molecules of calcium carbonate do you have?

Tags

NGSS.HS-PS1-7

What is the main component of chalk used in a mole chalk lab?

• Calcium carbonate

• Sodium chloride

• Silicon dioxide

• Magnesium sulfate

How many moles of carbon are present in 1 mole of calcium carbonate?

• 1 mole

• 2 moles

• 3 moles

• 4 moles

Tags

NGSS.HS-PS1-7

In a mole chalk lab, if you have 10 grams of calcium carbonate, how many moles do you have?

• 0.1 moles

• 0.5 moles

• 0.2 moles

• 1 mole

What is the purpose of using a mole concept in a chalk lab?

• To measure the amount of substance

• To determine the color of chalk

• To test the hardness of chalk

• To calculate the density of chalk

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-7

If you have 2 moles of calcium carbonate, how many moles of oxygen atoms do you have?

• 6 moles

• 2 moles

• 4 moles

• 3 moles

Tags

NGSS.MS-PS1-1