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Many familiar substances have common, unsystematic names. For each of the following, give the correct systematic name: (a) saltpeter, \(\mathrm{KNO}_{3}\); (b) soda ash, \(\mathrm{Na}_{2} \mathrm{CO}_{3} ;\) (c) lime, \(\mathrm{CaO}\); (d) muriatic acid, \(\mathrm{HCl}\); (e) Epsom salts, \(\mathrm{MgSO}_{4}\); (f) milk of magnesia, \(\mathrm{Mg}(\mathrm{OH})_{2}\).

Short Answer

Expert verified
The correct systematic names for the given familiar substances are: (a) potassium nitrate, (b) sodium carbonate, (c) calcium oxide, (d) hydrochloric acid, (e) magnesium sulfate, and (f) magnesium hydroxide.

Step by step solution

01

Analyze the compound (a) KNO鈧

In potassium nitrate (KNO鈧), we have a potassium ion (K鈦) and a nitrate ion (NO鈧冣伝). When combined, they form the neutral compound KNO鈧.
02

Write the systematic name of compound (a)

The systematic name for compound (a) is potassium nitrate.
03

Analyze the compound (b) Na鈧侰O鈧

In sodium carbonate (Na鈧侰O鈧), we have two sodium ions (Na鈦) and one carbonate ion (CO鈧兟测伝). When combined, they form the neutral compound Na鈧侰O鈧.
04

Write the systematic name of compound (b)

The systematic name for compound (b) is sodium carbonate.
05

Analyze the compound (c) CaO

In calcium oxide (CaO), we have one calcium ion (Ca虏鈦) and one oxide ion (O虏鈦). When combined, they form the neutral compound CaO.
06

Write the systematic name of compound (c)

The systematic name for compound (c) is calcium oxide.
07

Analyze the compound (d) HCl

In hydrochloric acid (HCl), we have one hydrogen ion (H鈦) and one chloride ion (Cl鈦). When combined, they form the neutral compound HCl.
08

Write the systematic name of compound (d)

The systematic name for compound (d) is hydrochloric acid.
09

Analyze the compound (e) MgSO鈧

In magnesium sulfate (MgSO鈧), we have one magnesium ion (Mg虏鈦) and one sulfate ion (SO鈧劼测伝). When combined, they form the neutral compound MgSO鈧.
10

Write the systematic name of compound (e)

The systematic name for compound (e) is magnesium sulfate.
11

Analyze the compound (f) Mg(OH)鈧

In magnesium hydroxide (Mg(OH)鈧), we have one magnesium ion (Mg虏鈦) and two hydroxide ions (OH鈦). When combined, they form the neutral compound Mg(OH)鈧.
12

Write the systematic name of compound (f)

The systematic name for compound (f) is magnesium hydroxide.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Chemical Nomenclature
Chemical nomenclature refers to the system of naming chemical compounds. This system ensures consistency and clarity, making it easier for scientists and students to identify and communicate about chemical substances. The International Union of Pure and Applied Chemistry (IUPAC) provides a set of rules to name compounds systematically.

Systematic naming often involves identifying the ions or basic constituents of the compound and describing their quantity and type. For instance, in the compound potassium nitrate, we identify both the potassium (K鈦) and nitrate (NO鈧冣伝) ions, leading to the systematic name.

Systematic nomenclature is crucial in chemistry because it provides an unambiguous method of naming substances, avoiding confusion that may arise from their common names. It's an essential skill in chemistry education and vital for professional and academic communication.
Understanding Ionic Compounds
Ionic compounds are composed of positively charged ions (cations) and negatively charged ions (anions) that are held together by electrostatic forces. They form when electrons are transferred from one atom, typically a metal, to another, usually a non-metal.

In the exercise provided, compounds like potassium nitrate ( KNO鈧) and sodium carbonate ( Na鈧侰O鈧) are classic examples of ionic compounds. Each of these compounds is neutral overall, which means the total positive charge equals the total negative charge.

To systematically name an ionic compound, it's important to first identify both the cations and anions involved. The name of the metal ion or the cation is stated first, followed by the name of the non-metal ion or the anion. This convention provides a clear and standardized way to articulate the compound's composition.
The Role of Common Names
Common names are the traditional, everyday names given to substances. They are often easier to remember or pronounce than systematic names. However, common names can be imprecise because they do not convey the composition or structure of the compound.

For example, 'lime' often refers to CaO or calcium oxide, and 'muriatic acid' is another name for HCl or hydrochloric acid.

While common names can be easier to recall, they lack the specificity needed for detailed scientific work. Learning both common and systematic names enhances one's understanding of chemistry, making the transition from intuitive learning to scientific rigor smoother.

It's important in chemistry education to understand when to use each type of name, as well as to appreciate the historical or practical reasons for the persistence of common names.
Advancing Chemistry Education
Chemistry education benefits greatly from a solid understanding of chemical nomenclature. Nomenclature is a foundational skill that helps build literacy in chemistry with long-lasting benefits.

Teaching students how to name chemical compounds systematically encourages critical thinking as they consider the charge balance and molecular composition. Practical exercises, like those detailed, enhance cognitive skills by demanding logical reasoning and application of standardized rules.

To foster deeper learning, educators utilize activities involving the translation of common names to systematic names. This not only improves memorization but also reinforces the functional understanding of chemical properties and reactions.

Well-rounded chemistry education often includes a blend of theoretical instruction and practical exercises, fostering analytical skills, attention to detail, and problem-solving abilities, all essential components of the chemistry curriculum.

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Most popular questions from this chapter

The natural abundance of \({ }^{3} \mathrm{He}\) is \(0.000137 \%\). (a) How many protons, neutrons, and electrons are in an atom of \({ }^{3} \mathrm{He}\) ? (b) Based on the sum of the masses of their subatomic particles, which is expected to be more massive, an atom of \({ }^{3} \mathrm{He}\) or an atom of \({ }^{3} \mathrm{H}\) (which is also called tritium)? (c) Based on your answer to part (b), what would need to be the precision of a mass spectrometer that is able to differentiate between peaks that are due to \({ }^{3} \mathrm{He}^{+}\)and \({ }^{3} \mathrm{H}^{+}\)?

How many hydrogen atoms are in each of the following: (a) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\), (b) \(\mathrm{Ca}\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{COO}\right)_{2}\), (c) \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}\) ?

The most common charge associated with scandium in its compounds is 3 +. Indicate the chemical formulas you would expect for compounds formed between scandium and (a) iodine, (b) sulfur, (c) nitrogen.

Each of the following elements is capable of forming an ion in chemical reactions. By referring to the periodic table, predict the charge of the most stable ion of eache (a) \(\mathrm{Mg}\), (b) \(\mathrm{Al}\), (c) \(\mathrm{K}\), (d) \(\mathrm{S}\), (e) \(\mathrm{F}\).

How many hydrogen atoms are in each of the following: (a) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\), (b) \(\mathrm{Ca}\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{COO}\right)_{2}\), (c) \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}\) ?

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