Counting Atoms and Moles: A Deep Dive

What does a mole compare to in everyday terms?

• A million

• A thousand

• A hundred

• A dozen

How many items are there in a mole?

• 1000

• 12

• 6.02 x 10^23

• 100

Why is it impractical to count atoms directly?

• Atoms move too quickly

• Atoms are too large

• Atoms are invisible

• Atoms are too small and numerous

What analogy is used to explain the concept of weighing instead of counting?

• Sorting beans

• Counting candies

• Measuring water

• Weighing jellybeans

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NGSS.5-PS1-2

What does the molar mass indicate?

• Density of a mole of atoms

• Weight of a mole of atoms in grams

• Volume of a mole of atoms

• Number of atoms in a mole

Where can you find the molar mass of an element?

• On the periodic table

• In a textbook

• On a calculator

• In a laboratory

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NGSS.HS-PS1-1

What is the weight of 602 hexillion zinc atoms?

• 32.07 grams

• 12.01 grams

• 65.38 grams

• 50 grams

How many grams does one mole of carbon weigh?

• 12.01 grams

• 32.07 grams

• 65.38 grams

• 100 grams

How is the number of moles in a sample determined?

• By weighing the sample

• By counting each atom

• By estimating visually

• By guessing the weight

How many atoms are in 2.654 moles of carbon?

• 1.60x10^24 atoms

• 6.02x10^23 atoms

• 3.01x10^23 atoms

• 2.00x10^24 atoms