Moles Quiz 3

How many atoms of carbon  are in 6.00g of carbon?

• 1.20x10²⁴atoms C
• 6.02x10²³atoms C
• 3.01x10²³atoms C
• 1.50x10²³atoms C

Tags

NGSS.HS-PS1-7

How many grams are in 1.2 x 10²⁴ molecules of CO?

• 28 grams
• 56 grams
• 6.02 grams
• 1.2 grams

Tags

NGSS.HS-PS1-7

How many moles are in 15 grams of lithium?

• 0.5 moles
• 104.1 moles
• 2.2 moles
• 50 moles

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

The number 6.02 x 10²³ is ______.

• molar mass
• molecules
• Avogadro's number
• hydrate

Which of the following has the same number of atoms as in 2 moles Carbon?

• All of them
• 2 moles Mg
• 2 moles K
• 2 moles Al

Why do we use moles?

• We want to use a lot of chemicals.
• We want to count chemicals using its mass.
• We have the technology to count atoms one by one.
• We like little cute animals.

Tags

NGSS.HS-PS1-7

Which one of the following have the greatest mass?

• 1 mole carbon
• 2 mole Hydrogen
• 1 mole silver
• 1 mole gold

Which of the following has the most number of molecules?

• 1 mole of calcium
• 2 mole of sodium
• 3 mole of helium 
• 4 mole of Lithium

Which one of the following is NOT a unit?

• mole
• gram
• gram/mol
• mass