Hydrogen Atom Mass and Isotopes

The video tutorial explains how to find the mass of one atom of hydrogen by using the average atomic mass and dividing it by Avogadro's number. It demonstrates the calculation process, including unit conversion from grams to kilograms. The tutorial also covers the isotopes of hydrogen, such as deuterium and tritium, and how to calculate their atomic mass.

What is the first step in finding the mass of a hydrogen atom?

• Multiply the atomic mass by Avogadro's number

• Divide the molar mass by Avogadro's number

• Subtract Avogadro's number from the atomic mass

• Add the atomic mass to Avogadro's number

What units are used for the average atomic mass of hydrogen?

• Kilograms per mole

• Grams per mole

• Moles per gram

• Atoms per mole

How many particles are there in one mole of a substance?

• 3.01 x 10^23

• 6.02 x 10^23

• 1.01 x 10^23

• 9.02 x 10^23

What is the mass of one hydrogen atom in grams?

• 1.68 x 10^-24 grams

• 1.01 x 10^-24 grams

• 2.68 x 10^-24 grams

• 6.02 x 10^-24 grams

How do you convert the mass of a hydrogen atom from grams to kilograms?

• Divide by 1000

• Multiply by 1000

• Add 1000

• Subtract 1000

What is the mass of one hydrogen atom in kilograms?

• 1.68 x 10^-24 kg

• 1.68 x 10^-27 kg

• 1.01 x 10^-27 kg

• 6.02 x 10^-27 kg

Which of the following is an isotope of hydrogen?

• Carbon

• Helium

• Deuterium

• Oxygen

What is the mass number of deuterium?

• One

• Two

• Three

• Four

How do you calculate the mass of one atom of deuterium?

• Use the average atomic mass and divide by Avogadro's number

• Use the mass number of deuterium and divide by Avogadro's number

• Multiply the mass number by Avogadro's number

• Subtract Avogadro's number from the mass number

What is the mass number of tritium?

• Four

• One

• Two

• Three