How Many Atoms of He Gas Are Present in a 450

question 109

Multiple Choice

How many atoms of He gas are present in a 450 mL container at 35 ^$\circ$ C and 740 mmHg

• A) 0.017 He atoms
• B) 0.068 He atoms
• C) 1.2 x 10⁵ He atoms
• D) 1.0 x 10²² He atoms
• E) 7.9 x 10²⁴ He atoms

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Definitions:

Method of Concomitant Variations

A principle in scientific and philosophic reasoning that suggests a causal relationship between two variables if they vary together consistently.

Method of Concomitant Variations

A scientific method where one observes the changes in one variable alongside the changes in another, determining correlation.

Sunlight

The light and energy that comes from the sun, providing warmth and facilitating photosynthesis in plants.

Method of Concomitant Variations

A research method where one observes the effects of the deliberate variation of one factor on a phenomenon to identify causation.