Mass and Properties of Nitrogen

The video tutorial explains how to calculate the mass of one atom of nitrogen by dividing its atomic mass by Avogadro's number. It covers the concept of molar mass, conversion to grams, and the significance of small mass values. The tutorial also discusses isotopes of nitrogen, such as nitrogen-15, and how to calculate their atomic mass.

What is the primary goal when finding the mass of one atom of nitrogen?

• To find the atomic number of nitrogen

• To calculate the average atomic mass of nitrogen

• To identify the isotope of nitrogen

• To determine the molar mass of nitrogen

What is the unit of molar mass for nitrogen?

• Grams per mole

• Grams per atom

• Atoms per mole

• Moles per gram

How does Avogadro's number help in calculating the mass of one nitrogen atom?

• It gives the number of atoms in a mole

• It measures the atomic radius

• It provides the number of atoms in a gram

• It determines the atomic number

What is the mass of one nitrogen atom in grams?

• 4.56 x 10^-25 grams

• 2.33 x 10^-23 grams

• 1.67 x 10^-24 grams

• 3.45 x 10^-22 grams

How can the mass of a nitrogen atom be converted to kilograms?

• Multiply by 1000

• Subtract 1000

• Divide by 1000

• Add 1000

What is the mass of one nitrogen atom in kilograms?

• 2.33 x 10^-26 kg

• 3.45 x 10^-22 kg

• 2.33 x 10^-23 kg

• 1.67 x 10^-24 kg

How would you calculate the mass of an isotope of nitrogen, such as nitrogen-15?

• Multiply the atomic mass by 15

• Replace the atomic mass with 15 in the calculation

• Use the atomic mass of nitrogen-14

• Use the atomic number of nitrogen

What is the significance of the number 15 in nitrogen-15?

• It represents the atomic number

• It is the atomic mass of the isotope

• It shows the number of electrons

• It indicates the number of protons

Who is the presenter of the video tutorial?

• Dr. Johnson

• Dr. Bait

• Dr. Lee

• Dr. Smith