If the Magnitude Difference Between One Star and Another Is

question 116

Multiple Choice

If the magnitude difference between one star and another is 8, the stars differ in brightness by a factor of

• A) 2.51.
• B) 20.
• C) 7.
• D) 1580.

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Definitions:

2-methylcyclohexanone

An organic compound consisting of a six-membered ring with a ketone functional group and a methyl group attached.

Enolate

An ion formed by the deprotonation of an alpha carbon of a carbonyl compound, involved in many important organic reactions.

Carbonyl

A functional group characterized by a carbon atom double-bonded to an oxygen atom (C=O).

Pka Values

A quantitative measure of the strength of an acid in solution, representing the acid dissociation constant logarithmically.