How Many Molecules of He are Contained in a 10

question 101

Multiple Choice

How many molecules of He are contained in a 10.0 L tank at 7.53 atm and 485 K?

• A) 1.89 × 10²⁴ molecules
• B) 1.14 × 10²⁴ molecules
• C) 8.32 × 10²⁴ molecules
• D) 4.89 × 10²⁴ molecules
• E) 3.63 × 10²⁴ molecules

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Definitions:

Electrically Charged

Having a property that causes it to attract or repel other electrically charged objects due to the presence of electric charges on its surface.

At Rest

A state in which one is not engaged in physical activity or exertion, often associated with the body’s normal functions at a basal metabolic rate.

Neuron

A specialized cell transmitting nerve impulses; a fundamental unit of the brain and nervous system.

Axon

An elongated, thin extension of a neuron, or nerve cell, that generally transports electrical signals from the cell body of the neuron.