10.1/10.2 Da Mole

Determine the number of atoms in 3.54 mol S.

• 1.70 x 10²³

• 1.70 x 10²⁴

• 2.13 x 10²³

• 2.13 x 10²⁴

How many particles are present in one mole of particles?

• 6.02 x 10²³

• 3.0 x 10⁸

• 1

• 12

The sucrose molecule is a large and complex molecule built of carbon, hydrogen, and oxygen. How many sucrose molecules in 0.5 moles of sucrose?

• 6.02 x 10²³

• 1.20 x 10²⁴

• 3.01 x 10²³

• 1.20 x 10²³

Radium is a radioactive element that decays into radon gas. Its atomic mass is 226. How many moles in 5.0 x 10² grams of radium?

• 2.2 moles

• 726 moles

• 3 x 10²⁶ moles

• 0.452 moles

How many moles are in 20 grams of Ca (Calcium)?

• 0.5

• 1

• 3

• 20

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

How many moles are in 15 grams of Lithium?

• 2.2

• 0.47

• 1.0 x 10²

• 7.0

The number 6.02 x 10²³ is called...

• Obama's number
• Bohr's number
• Trump's number
• Avogadro's number

How many atoms are in 3.5 moles of arsenic atoms?

• 5.8 x 10^-24
• 7.5 x 10¹
• 2.1 x 10²⁴
• 1.7 x 10²³

What is the molar mass of CO₂?

• 12 g/mol

• 16 g/mol

• 32 g/mol

• 44 g/mol