Barbiturates Are Synthetic Drugs Used as Sedatives and Hypnotics

question 62

Multiple Choice

Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital ( = 184.2 g/mol) is one of the simplest of these drugs. What is the boiling point of a solution prepared by dissolving 42.5 g of barbital in 825 g of acetic acid? K_b = 3.07°C/m; boiling point of pure acetic acid = 117.9°C

• A) 117.0°C
• B) 117.7°C
• C) 118.1°C
• D) 118.8°C
• E) >120°C

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