Unit 8 Intro

What is Avogadro's Number?

• 6.02 x 10^22

• 6.02 x 10^23

• 1.20 x 10^23

• 1.20 x 10^22

What is the number of moles in 1.20 x 10^24 particles?

• 2 moles

• 1 mole

• 0.5 moles

• 0.2 moles

How many total atoms are in one molecule of CaCl₂?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

If you have 1 mole of CaCl₂, how many moles of chlorine ions (Cl^- ) do you have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-7

There are 6.02 x 10²³ particles in 1 mole. Particles can be: ______ (select all that apply)

• Molecules

• Ions

• Atoms

Tags

NGSS.HS-PS1-7

How many atoms of fluorine are in 2.5 moles of F₂?

• 1.51 x 10^24 atoms

• 1.51 x 10^23 atoms

• 1.51 x 10^22 atoms

• 1.51 x 10^21 atoms

Tags

NGSS.HS-PS1-7

How many phosphate ions are there in 3.79 moles of Magnesium Phosphate?

• 4.56 x 10^24 ions

• 4.56 x 10^23 ions

• 2.26 x 10^23 ions

• 2.26 x 10^24 ions