What Is the Mass, in Grams, of 30

question 15

Multiple Choice

What is the mass, in grams, of 30.7 mL of a liquid if its density is 0.81 g/mL?

• A) 3.8
• B) 25
• C) 4
• D) 249

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Definitions:

Sleep Cycle

The progression through various stages of non-REM and REM sleep that occurs multiple times during a typical night's sleep, important for physical and mental restoration.

Obstructive Sleep Apnea

A sleep disorder characterized by pauses in breathing or periods of shallow breathing during sleep due to airway blockage.

Bruxism

A condition where an individual grinds, gnashes, or clenches their teeth, often unconsciously, especially during sleep.

Daytime Fatigue

A condition characterized by persistent tiredness and lack of energy during the daytime, not directly linked to lack of sleep.