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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