Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Mass Spectrometry
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**Calculating the Molecular Weight of 2,3-Dimethylbutanoic Acid** To calculate the molecular weight of the compound 2,3-dimethylbutanoic acid, refer to the ball-and-stick molecular model provided. The image represents the compound, where different colored balls symbolize different atoms. Complete the table below by determining the atomic weights and the number of each type of atom present in the compound. The atomic weights of common atoms are: - Carbon (C): 12.01 amu - Hydrogen (H): 1.008 amu - Oxygen (O): 16.00 amu **Molecular Structure Model:** ![Ball-and-stick model of 2,3-dimethylbutanoic acid with labels](URL) (Note: The image depicts the molecular structure using balls for atoms and sticks for bonds. Carbon atoms are typically represented by gray balls, hydrogen atoms by white balls, and oxygen atoms by red balls.) ### Table for Molecular Weight Calculation: | Atom | Atomic Weight (amu/atom) | # Atoms | Weight in Compound (amu) | |------|--------------------------|---------|-------------------------| | C | | atoms | | | H | | atoms | | | O | | atoms | | ### Calculation: - **Carbon (C)**: - Atomic Weight: 12.01 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu - **Hydrogen (H)**: - Atomic Weight: 1.008 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu - **Oxygen (O)**: - Atomic Weight: 16.00 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu **Total Molecular Weight Calculation:** Sum the weights contributed by each type of atom to get the total molecular weight of the compound. molecular weight of 2,3-dimethylbutanoic acid = [Calculation] amu
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Transcribed Image Text:**Calculating the Molecular Weight of 2,3-Dimethylbutanoic Acid** To calculate the molecular weight of the compound 2,3-dimethylbutanoic acid, refer to the ball-and-stick molecular model provided. The image represents the compound, where different colored balls symbolize different atoms. Complete the table below by determining the atomic weights and the number of each type of atom present in the compound. The atomic weights of common atoms are: - Carbon (C): 12.01 amu - Hydrogen (H): 1.008 amu - Oxygen (O): 16.00 amu **Molecular Structure Model:** ![Ball-and-stick model of 2,3-dimethylbutanoic acid with labels](URL) (Note: The image depicts the molecular structure using balls for atoms and sticks for bonds. Carbon atoms are typically represented by gray balls, hydrogen atoms by white balls, and oxygen atoms by red balls.) ### Table for Molecular Weight Calculation: | Atom | Atomic Weight (amu/atom) | # Atoms | Weight in Compound (amu) | |------|--------------------------|---------|-------------------------| | C | | atoms | | | H | | atoms | | | O | | atoms | | ### Calculation: - **Carbon (C)**: - Atomic Weight: 12.01 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu - **Hydrogen (H)**: - Atomic Weight: 1.008 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu - **Oxygen (O)**: - Atomic Weight: 16.00 amu/atom - # Atoms: [Insert Number] - Weight in Compound: [Calculation] amu **Total Molecular Weight Calculation:** Sum the weights contributed by each type of atom to get the total molecular weight of the compound. molecular weight of 2,3-dimethylbutanoic acid = [Calculation] amu
### Calculating the Molecular Weight of 2,2-Dimethylbutane **Objective:** Use the references to access important values if needed for this question. Complete the table below for calculating the molecular weight of the compound **2,2-dimethylbutane**, shown in the model. **Molecular Model:** The image displays the molecular structure of 2,2-dimethylbutane using a ball-and-stick model. The atoms are represented as spheres connected by sticks, illustrating the bonds between them. **Table for Calculation:** | Atom | Atomic Weight | # Atoms | Weight in Compound | |------|---------------|---------|--------------------| | C | ______ amu/atom | × _____ atoms | = ______ amu | | H | ______ amu/atom | × _____ atoms | = ______ amu | **Calculation:** Molecular weight of **2,2-dimethylbutane** = __________ amu **Instructions:** 1. Identify the atomic weights of Carbon (C) and Hydrogen (H) from a standard periodic table or reference source. 2. Count the number of each type of atom in the compound from the molecular model. 3. Calculate the total weight of each type of atom (Atomic Weight × Number of Atoms). 4. Sum the weights of all atoms in the compound to find the molecular weight. This exercise aids in understanding the process of determining the molecular weight of organic compounds using structural models and atomic weight values.
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Transcribed Image Text:### Calculating the Molecular Weight of 2,2-Dimethylbutane **Objective:** Use the references to access important values if needed for this question. Complete the table below for calculating the molecular weight of the compound **2,2-dimethylbutane**, shown in the model. **Molecular Model:** The image displays the molecular structure of 2,2-dimethylbutane using a ball-and-stick model. The atoms are represented as spheres connected by sticks, illustrating the bonds between them. **Table for Calculation:** | Atom | Atomic Weight | # Atoms | Weight in Compound | |------|---------------|---------|--------------------| | C | ______ amu/atom | × _____ atoms | = ______ amu | | H | ______ amu/atom | × _____ atoms | = ______ amu | **Calculation:** Molecular weight of **2,2-dimethylbutane** = __________ amu **Instructions:** 1. Identify the atomic weights of Carbon (C) and Hydrogen (H) from a standard periodic table or reference source. 2. Count the number of each type of atom in the compound from the molecular model. 3. Calculate the total weight of each type of atom (Atomic Weight × Number of Atoms). 4. Sum the weights of all atoms in the compound to find the molecular weight. This exercise aids in understanding the process of determining the molecular weight of organic compounds using structural models and atomic weight values.
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