The Mass of an Atom of ¹²C Is Exactly 12

question 51

Multiple Choice

The mass of an atom of ¹²C is exactly 12 atomic mass units. Which of the following describes a mole of ¹²C atoms?

• A) a sample which contains 6.02 × 10²³ atoms of ¹²C
• B) a sample which weighs exactly 12.011 grams
• C) both a and b
• D) neither a nor b

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Definitions:

Categorical

Relating to data that can be divided into specific groups or categories that are mutually exclusive.

Explanatory Variables

Variables in a statistical model that are thought to influence or predict changes in a response variable.

Binomial Outcome

A situation in statistics where an experiment or trial results in one of two outcomes, often termed success or failure.

Odds

A ratio representing the likelihood that an event will occur compared to the likelihood that it will not.