Question

What is the mass in grams of a single atom of each of the following elements: (a) Hg, (b) Ne?

   What is the mass in grams of a single atom of each of the following elements: (a) Hg, (b) Ne?

Chemistry

Julia Burdge 1st Edition

Chapter 3, Problem 36

Instant Answer

Solved by Expert Dr. Satish Ingale

12/29/2020

Step 1

The formula to calculate this is given by the atomic mass of the element divided by Avogadro's number. The atomic mass of Mercury is 200.59 and Avogadro's number is \(6.022 \times 10^{23}\). So, the mass in grams of a single atom of Mercury is given by: \[ Show more…

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What is the mass in grams of a single atom of each of the following elements: (a) Hg, (b) Ne?

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Key Concepts

Avogadro's Number

Avogadro's Number is the number of atoms or molecules in one mole of any substance, approximately 6.022 x 10^23. This constant provides a bridge between the atomic scale and the macroscopic scale, allowing chemists to convert between the mass of a substance and the number of atoms or molecules it contains.

Molar Mass

Molar mass is the mass of one mole of a substance, usually expressed in grams per mole (g/mol). It represents the mass of Avogadro's number of atoms or molecules and is numerically equivalent to the atomic or molecular mass in atomic mass units.

Calculating the Mass of a Single Atom

Once the molar mass of an element is known, the mass of a single atom can be calculated by dividing the molar mass by Avogadro's Number. This conversion uses the relationship between the collective mass of a mole of atoms and the mass of an individual atom, facilitating the exploration of atomic-scale properties from macroscopic measurements.

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