Dinitrogen Monoxide,or Laughing Gas (N₂O),is Used as a Dental Anesthetic

question 8

Multiple Choice

Dinitrogen monoxide,or laughing gas (N₂O) ,is used as a dental anesthetic and as an aerosol propellant.How many molecules of N₂O are present in a 12.6 g sample of the compound?

• A)1.72 × 10²³ molecules
• B)1.289 molecules
• C)3.34 × 10²⁶ molecules
• D)7.59 × 10²⁴ molecules
• E)5.14 × 10²³ molecules

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Definitions:

Displacement

An aggressive mechanism in which an individual directs his or her anger toward someone who is not the source of the conflict.

Bending Moments

A measure of the bending effect on an element due to external forces or moments applied to it, crucial in the design and analysis of structures.

Defense Mechanism

Psychological strategies used unconsciously by individuals to protect themselves from anxiety or to maintain a sense of self-esteem.

Displacement

The transfer of emotions or reactions from the original source of stimulation to another target.