How Many Moles Are Represented by 2

question 58

Multiple Choice

How many moles are represented by 2.5 × 10¹⁵ Na atoms?

• A)3.8 × 10^-10 mol
• B)1.8 × 10^-10 mol
• C)1.5 × 10³⁹ mol
• D)4.2 × 10^-9 mol
• E)1.1 × 10¹⁴ mol

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Definitions:

London Forces

Weak intermolecular forces, also known as dispersion forces, arising from instantaneous dipoles in molecules, influential in nonpolar compounds.

Sodium Chloride

Sodium chloride is a chemical compound also known as table salt, formed from the ionic bonding of sodium and chlorine atoms.

Organic Solvent

A liquid substance capable of dissolving other substances; usually organic compounds that are not water.

Hexane

A straight-chain alkane with six carbon atoms, typically used as a non-polar solvent in organic chemistry.