Ch.1 - Intro to General ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: The radius of a neon atom is 69 pm, and its mass is 3.35 x 10-23 g. What is the density of the atom in grams per cubiccentimeter (g/cm3)? Assume the nucleus is a sphere with volume = 4/3πr3.

Solution: The radius of a neon atom is 69 pm, and its mass is 3.35 x 10-23 g. What is the density of the atom in grams per cubiccentimeter (g/cm3)? Assume the nucleus is a sphere with volume = 4/3πr3.

Problem

The radius of a neon atom is 69 pm, and its mass is 3.35 x 10-23 g. What is the density of the atom in grams per cubic
centimeter (g/cm3)? Assume the nucleus is a sphere with volume = 4/3πr3.

Solution

Recall: Density is given by:

We know the mass of a neon atom, 3.35 × 1023 g. For the volume, we need to calculate the volume of the atom. The volume of a sphere is given by:

where r = radius.

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