A Rock Contains an Element with a Molar Mass of 40.08

question 2

Multiple Choice

A rock contains an element with a molar mass of 40.08 g/mol.If 9.28 × 10²⁴ atoms of this element were found in the rock, how many grams of the unknown element are present in the rock?

• A)618 g
• B)1.49 × 10²⁸ g
• C)2.24 × 10⁵⁰ g
• D)0.38 g
• E)3.80 g

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Definitions:

Self-efficacy

A belief in one's capabilities to organize and execute the courses of action required to manage prospective situations.

Birth Order

The theory that a person's rank by age among siblings influences their personality and behavior.

Personality Theorist

A psychologist or scholar who studies and develops theories about the nature, development, and variations of personalities.

Behavioural Personality Theories

Theories suggesting that personality is a result of interaction between the individual and the environment.