Determine the molecular and empirical formulas of the following: (a) the organic solvent benzene, which has six carbon atoms and six hydrogen atoms
Ch.2 - Atoms, Molecules, and Ions
Chapter 2, Problem 52a
How many of the indicated atoms are represented by each chemical formula: (a) carbon atoms in C4H9COOCH3

1
Identify the chemical formula: C4H9COOCH3.
Break down the formula into its components: C4H9, COO, and CH3.
Count the carbon atoms in each component: C4H9 has 4 carbon atoms, COO has 1 carbon atom, and CH3 has 1 carbon atom.
Add the number of carbon atoms from each component: 4 (from C4H9) + 1 (from COO) + 1 (from CH3).
Sum the total number of carbon atoms to find the answer.

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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Chemical Formula Interpretation
A chemical formula represents the types and numbers of atoms in a molecule. In the formula C4H9COOCH3, the subscripts indicate the number of each type of atom present. For example, 'C' stands for carbon, 'H' for hydrogen, and 'O' for oxygen, with the numbers indicating how many of each atom are in the compound.
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Counting Atoms in a Formula
To determine the number of specific atoms in a chemical formula, one must sum the contributions from each part of the formula. In C4H9COOCH3, the carbon atoms are found in multiple segments: C4 (4 carbons), COO (1 carbon), and CH3 (1 carbon), leading to a total of 6 carbon atoms.
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Molecular Structure and Composition
Understanding the molecular structure is crucial for interpreting chemical formulas. The arrangement of atoms affects the properties and reactivity of the molecule. In C4H9COOCH3, the structure includes a carbon chain and functional groups, which influence how the molecule behaves in chemical reactions.
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