Mole/Molecules/MolarMass

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

How many moles are in 16.94g of water?

• 16.94
• 0.9403
• 305.2
• 1.063

Covalent compounds are called molecules.  Ionic compounds are called formula units.  How many moles of CaO contain 6.02x10²⁵ formula units? 

• 100
• 1
• 56
• 560

Tags

NGSS.HS-PS1-7

How many molecules are in 9.4 moles of AlCl₃?

• 5.66
• 5.66x10²⁴
• 0.705
• 1.25x10²³

Tags

NGSS.HS-PS1-7

How many grams would 4.13x10²¹ molecules of diatomic nitrogen gas weigh?

• 0.0961
• 0.192
• 14.007
• 28.014

Tags

NGSS.HS-PS1-7

How many grams is 1.2 moles of Neon?

• 0.05 grams
• 16.6 grams
• 21.2 grams
• 24 grams

How many particles are in 13.5 grams of Beryllium?

• 1.5 particles
• 9 particles
• 4x10²³ particles
• 9x10²³ particles

Tags

NGSS.HS-PS1-7

What is the mass of 5 moles of iron(III) oxide?

• 800 mol
• 800 g
• 268 g
• 358 g

How many atoms are in 8.5 mole of nickel?

• 8500 Ni atoms
• 6.02 * 10²³ Ni atoms
• 5.1 * 10²⁴ Ni atoms
• 5.1 * 10²³ Ni atoms

Tags

NGSS.HS-PS1-7

How many grams are in 5.6 moles of sodium bromide?

• 36.8 g/mol
• 18.4 g
• 576 g/mol
• 576 g

Tags

NGSS.HS-PS1-7