Which of the following is the chemical formula of a compound indicating the relative number of atoms in the simplest ratio?
Correct answer: A. Empirical formula
- A. Empirical formula
- B. Empirical formula mass
- C. Molecular formula
- D. Molecular mass
Explanation
The empirical formula expresses the simplest, most reduced ratio of the different types of atoms in a chemical compound. It provides information about the relative numbers of each type of atom present, and the ratios are always in the smallest whole numbers.
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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