Aspirin is a white and odorless powder, and it has a bitter taste. Because it is based on salicylic acid, it is also crystalline. It's structural formula is CH3COOC6H4COOH, an aspirin's percent composition is 4.50% hydrogen, 60.0% carbon, and 35.5% oxygen by mass. The structure is split into three parts. These parts include the acetyl group, the carboxyl acid, and the carbon ring. Aspirin has a boiling point of 140 degrees Celsius, which is 284 degrees Fahrenheit, and it has a melting point of 135 degrees Celsius, which is 275 degrees Fahrenheit. Acetylsalicylic acid has a molecular weight of 180.16 grams per mole, and it's density is 1.4 grams per centimeter cubed. Aspirin also has a solubility of 1g/100g water at 37 degrees Celsius, and the molecule .
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