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A 100 mL solution of theobromine in water is made, and the solution has a density of 1.16 g/mL. If water has a density of 1g/mL, how many molecules of theobromine are in 1 mL of the solution?

A 100 mL solution of theobromine in water is made, and the solution has a density of 1.16 g/mL. If water has a density of 1g/mL, how many molecules of theobromine are in 1 mL of the solution?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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  1. A 100 mL solution of theobromine in water is made, and the solution has a density of 1.16 g/mL. If water has a density of 1g/mL, how many molecules of theobromine are in 1 mL of the solution?
**Theobromine in Chocolate: Structure and Function** The compound depicted is theobromine. It is a key component in chocolate, bearing a structural resemblance to caffeine, and exerts similar physiological effects. Understanding theobromine's role in the human body necessitates a comprehension of its molecular shape and composition. **Molecular Structure of Theobromine:** - **Carbon Atoms (C):** Represented by intersections and vertices in the hexagonal ring and side chains. - **Nitrogen Atoms (N):** Present in two locations, contributing to the structure's aromaticity and stability. - **Oxygen Atoms (O):** Attached to carbon atoms, forming carbonyl groups (C=O), which are critical for the compound's biochemical interactions. - **Hydrogen Atoms (H):** Bonded to carbon and nitrogen, completing the molecule’s structure. The diagram illustrates a three-fused-ring system typical of xanthine compounds, like caffeine, indicating its stimulant effects.
Transcribed Image Text:**Theobromine in Chocolate: Structure and Function** The compound depicted is theobromine. It is a key component in chocolate, bearing a structural resemblance to caffeine, and exerts similar physiological effects. Understanding theobromine's role in the human body necessitates a comprehension of its molecular shape and composition. **Molecular Structure of Theobromine:** - **Carbon Atoms (C):** Represented by intersections and vertices in the hexagonal ring and side chains. - **Nitrogen Atoms (N):** Present in two locations, contributing to the structure's aromaticity and stability. - **Oxygen Atoms (O):** Attached to carbon atoms, forming carbonyl groups (C=O), which are critical for the compound's biochemical interactions. - **Hydrogen Atoms (H):** Bonded to carbon and nitrogen, completing the molecule’s structure. The diagram illustrates a three-fused-ring system typical of xanthine compounds, like caffeine, indicating its stimulant effects.
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