Chapter 5: Problem 79
Name each acid. (a) \(\mathrm{HClO}\) (b) \(\mathrm{HClO}_{2}\) (c) \(\mathrm{HClO}_{3}\) (d) \(\mathrm{HClO}_{4}\)
Short Answer
Expert verified
The names of the acids are: (a) hypochlorous acid (b) chlorous acid (c) chloric acid (d) perchloric acid.
Step by step solution
01
Identifying the Patterns in Oxoacid Nomenclature
Recognize that the acids listed are all oxoacids of chlorine, which consist of hydrogen, chlorine, and oxygen. The nomenclature varies with the number of oxygen atoms present in the molecule, following a specific pattern that includes the prefixes 'hypo-' and 'per-' and the suffixes '-ous' and '-ic' to indicate the relative amount of oxygen.
02
Naming HClO
Since \(\mathrm{HClO}\) has the least number of oxygen atoms among the listed acids, it is named hypochlorous acid, following the prefix 'hypo-' and the suffix '-ous', indicating the lowest oxidation state for the chlorine in these series of acids.
03
Naming HClO2
The acid \(\mathrm{HClO}_{2}\) is named chlorous acid, using the suffix '-ous' to indicate that it has more oxygen atoms than hypochlorous acid, but not the most in the series.
04
Naming HClO3
The acid \(\mathrm{HClO}_{3}\) is named chloric acid. It has yet one more oxygen than chlorous acid and the '-ic' ending indicates a higher number of oxygen atoms.
05
Naming HClO4
Finally, \(\mathrm{HClO}_{4}\) is named perchloric acid, using the prefix 'per-' and the suffix '-ic' to show that it has the most oxygen atoms in this series of acids.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Acid Nomenclature
Understanding acid nomenclature is crucial for students studying chemistry, as it helps them effectively communicate the composition and properties of different substances.
Let's consider the oxoacids of chlorine to illustrate the naming process. An oxoacid is a type of acid that includes hydrogen, oxygen, and another element, called the central atom. The pattern in naming these acids involves a blend of prefixes and suffixes that denote the quantity of oxygen atoms present.
For instance, an acid with the least oxygen is given the prefix 'hypo-' and the suffix '-ous'. Conversely, the presence of more oxygen leads to the use of the suffix '-ic', and when the acid contains the highest amount of oxygen in its series, the prefix 'per-' is added to the '-ic' suffix. The central atom (in this case, chlorine) also plays a role in the root of the name, adding continuity across the series.
An interactive guide or practice problems that engage students in the patterns and rules of acid nomenclature can solidify their understanding and facilitate more accurate communication in the field of chemistry.
Let's consider the oxoacids of chlorine to illustrate the naming process. An oxoacid is a type of acid that includes hydrogen, oxygen, and another element, called the central atom. The pattern in naming these acids involves a blend of prefixes and suffixes that denote the quantity of oxygen atoms present.
For instance, an acid with the least oxygen is given the prefix 'hypo-' and the suffix '-ous'. Conversely, the presence of more oxygen leads to the use of the suffix '-ic', and when the acid contains the highest amount of oxygen in its series, the prefix 'per-' is added to the '-ic' suffix. The central atom (in this case, chlorine) also plays a role in the root of the name, adding continuity across the series.
An interactive guide or practice problems that engage students in the patterns and rules of acid nomenclature can solidify their understanding and facilitate more accurate communication in the field of chemistry.
Chemistry Education
The role of chemistry education in the modern curriculum cannot be overstated. It serves as the backbone for students to develop a clear understanding of not just the fundamentals of matter and its interactions but also the systematic naming conventions that stem from these understandings.
For educators, simplifying complex topics like acid nomenclature is key to effective teaching. Employing strategies such as mnemonic devices for remembering the prefixes and suffixes, comparing and contrasting acids with similar central atoms, and utilizing visuals, such as Lewis structures, can greatly assist learning.
In the context of our oxoacid examples, illustrating the gradual addition of oxygen atoms and relating this to the corresponding name changes can make a substantial difference in a student's ability to grasp the concept. Chemistry education evolves with every innovation in pedagogy and technology, ensuring concepts like acid nomenclature are approachable for every student.
For educators, simplifying complex topics like acid nomenclature is key to effective teaching. Employing strategies such as mnemonic devices for remembering the prefixes and suffixes, comparing and contrasting acids with similar central atoms, and utilizing visuals, such as Lewis structures, can greatly assist learning.
In the context of our oxoacid examples, illustrating the gradual addition of oxygen atoms and relating this to the corresponding name changes can make a substantial difference in a student's ability to grasp the concept. Chemistry education evolves with every innovation in pedagogy and technology, ensuring concepts like acid nomenclature are approachable for every student.
Chemical Formulas
The language of chemistry is expressed through chemical formulas, which succinctly communicate the composition of chemical compounds. Being able to interpret and relate these formulas to their respective names is an essential skill in chemistry.
A compound like \(\mathrm{HClO}\) represents not just the elements that comprise it—hydrogen, chlorine, and oxygen—but also its propensity to release protons in an aqueous solution, behaving as an acid. As we add more oxygen to form \(\mathrm{HClO}_2\), \(\mathrm{HClO}_3\), and \(\mathrm{HClO}_4\), the formulas show the increasing oxidation states of chlorine as reflected in their names; chlorous, chloric, and perchloric acids, respectively.
Mastery of interpreting chemical formulas goes hand-in-check with understanding the rules of acid nomenclature, and visual aids such as flashcards or digital quizzes can significantly enhance this intricate interplay, allowing students to learn the language of chemistry with confidence.
A compound like \(\mathrm{HClO}\) represents not just the elements that comprise it—hydrogen, chlorine, and oxygen—but also its propensity to release protons in an aqueous solution, behaving as an acid. As we add more oxygen to form \(\mathrm{HClO}_2\), \(\mathrm{HClO}_3\), and \(\mathrm{HClO}_4\), the formulas show the increasing oxidation states of chlorine as reflected in their names; chlorous, chloric, and perchloric acids, respectively.
Mastery of interpreting chemical formulas goes hand-in-check with understanding the rules of acid nomenclature, and visual aids such as flashcards or digital quizzes can significantly enhance this intricate interplay, allowing students to learn the language of chemistry with confidence.