Converting Grams to Atoms

The video tutorial explains how to convert grams to atoms using a mole map. It covers the process of dividing grams by molar mass to get moles, then multiplying by Avogadro's number to find atoms. Examples include converting grams of gold, calcium, water, and methane to atoms, with detailed steps and practice problems.

What is the first step in converting grams to atoms according to the mole map?

• Convert grams directly to particles

• Convert grams to moles

• Convert grams to kilograms

• Convert grams to liters

When converting 471.3 grams of gold to atoms, what is the atomic mass of gold used in the calculation?

• 180.50

• 200.00

• 196.97

• 150.25

What number is used to convert moles to atoms?

• Avogadro's number

• Planck's constant

• Boltzmann's constant

• Euler's number

In the practice problem, what is the atomic mass of calcium used to convert grams to moles?

• 40.08

• 20.04

• 30.06

• 50.09

What additional step is needed when converting grams of a molecule like H2O to atoms?

• Divide by the number of atoms in the molecule

• Multiply by the number of atoms in the molecule

• Subtract the number of atoms in the molecule

• Add the number of atoms in the molecule

How many atoms are in one molecule of water (H2O)?

• 4

• 2

• 5

• 3

In the methane conversion example, what is the molar mass of CH4 used in the calculation?

• 18.02

• 16.04

• 20.00

• 22.05

How many atoms are in one molecule of methane (CH4)?

• 5

• 4

• 3

• 6

What is the final step in converting grams to atoms?

• Add Avogadro's number

• Multiply by Avogadro's number

• Subtract Avogadro's number

• Divide by Avogadro's number

If you want to find only the number of hydrogen atoms in methane, what should you do?

• Multiply by 1

• Multiply by 4

• Multiply by 2

• Multiply by 3