### Pain Relievers and Their Common UsesThis multiple-choice question lists several common pain relievers. Understanding the uses and differences between these medications is important for making informed decisions on managing pain and other symptoms.**Question:****Which of the following is a pain reliever?**1. **Aspirin** - Commonly used for pain relief, reducing fever, and as an anti-inflammatory. Also used as an antiplatelet agent to prevent blood clots. 2. **Acetaminophen** - Helps relieve pain and reduce fever. It's often used for headaches, muscle aches, and chronic pain conditions. It does not have significant anti-inflammatory properties. 3. **Ibuprofen** - An over-the-counter nonsteroidal anti-inflammatory drug (NSAID). It's used for pain relief, reducing inflammation, and lowering fever. Effective for conditions like arthritis, muscle pain, and menstrual cramps. 4. **Caffeine** - A central nervous system stimulant most commonly found in coffee, tea, and energy drinks. While not primarily a pain reliever, it can enhance the effectiveness of other pain medications and is sometimes included in combination products for treating headaches. ### Identifying the Composition of an Unknown Sample Using a TLC PlateThin Layer Chromatography (TLC) is a technique used to separate and identify compounds in a mixture. The image provided showcases a TLC plate featuring five different samples designated as A, B, C, D, and E. Each of these samples represents a different compound:- **A**: Aspirin- **B**: Acetaminophen- **C**: Ibuprofen- **D**: Caffeine- **E**: UnknownBelow is a detailed explanation of the TLC plate:#### Description of the TLC PlateThe TLC plate is vertically aligned, with sample spots applied near the bottom on a baseline marked with five positions labeled A through E. These sample spots, once developed, move up the plate based on their affinities for the stationary phase and the solvent used.#### Observation and Interpretation- **A**: The sample spot of Aspirin (A) travels the farthest up the plate, indicating it has a relatively high affinity for the solvent.- **B**: The sample spot of Acetaminophen (B) is the second in height, meaning it has less affinity for the solvent than Aspirin but more than the other compounds.- **C**: The sample spot of Ibuprofen (C) is situated below Acetaminophen, signifying a lower affinity for the solvent.- **D**: The Caffeine (D) sample spot appears just above the baseline, indicating it has the least affinity for the solvent amongst these known compounds.- **E**: The Unknown (E) sample’s spot pattern matches the same height as Ibuprofen (C), suggesting that the unknown sample most likely contains Ibuprofen.#### Conclusion:Based on the heights and positions of the spots on the TLC plate, it can be inferred that the unknown sample (E) is most likely Ibuprofen. This conclusion is drawn from the similarity of the distance traveled by the unknown compound when compared with the reference compounds.

One TLC plate is given in which there are five spots. Four spots are of known compounds that are…

Answered: Identify the composition of the unknown…

Identify the composition of the unknown from this TLC plate. A = Aspirin %3D B = Acetaminophen C = Ibuprofen %3D D = Caffeine E = unknown %3D A BCDE

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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