Molecular Compounds: Acids Flashcards
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Questions and Answers

What is the name for the compound with the formula H2CO2?

carbonous acid

What is the name for the acid with the formula HNO2?

nitrous acid

Which one of the following is the name for H3PO2?

hypophosphorous acid

What is the name for the acid with the formula HClO2?

<p>chlorous acid</p> Signup and view all the answers

Which pair correctly matches the name for an acid with its formula?

<p>Hyposulfurous acid - H2SO2 (A)</p> Signup and view all the answers

What is the name for the aqueous acid with the formula HCl?

<p>hydrochloric acid</p> Signup and view all the answers

What is the formula for chromous acid?

<p>H2CrO3</p> Signup and view all the answers

Identify the acid formed from the hypochlorous anion.

<p>HClO</p> Signup and view all the answers

What is the name for the acid with the formula H3PO5?

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What is the formula for acetic acid?

<p>CH3COOH</p> Signup and view all the answers

Binary acid naming involves ____ + root + ic acid.

<p>hydro</p> Signup and view all the answers

What is the formula for chromic acid?

<p>H2CrO4</p> Signup and view all the answers

What is the formula for permanganic acid?

<p>HMnO4</p> Signup and view all the answers

What is the formula for sulfuric acid?

<p>H2SO4</p> Signup and view all the answers

What is the formula for hydrosulfuric acid?

<p>H2S</p> Signup and view all the answers

What is the formula for hyposulfurous acid?

<p>H2SO2</p> Signup and view all the answers

What is the name for the compound with the formula H2Cr2O7?

<p>dichromic acid</p> Signup and view all the answers

Flashcards

Carbonous acid

An acid with the formula H2CO2.

Nitrous acid

An acid with the formula HNO2.

Hypophosphorous acid

An acid with the formula H3PO2.

Chlorous acid

An acid with the formula HClO2.

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Hyposulfurous acid

A binary acid that includes the element sulfur, and has the formula H2SO2.

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Hydrochloric acid

An aqueous acid with the formula HCl.

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Chromous acid

A weak acid with the formula H2CrO3.

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Hypochlorous acid

An acid formed when the hypochlorous anion is dissolved in water.

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CH3COOH

The formula for acetic acid.

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Hydro + root + ic acid

The prefix used when naming a binary acid. This naming convention utilizes the prefix 'hydro', the root of nonmetal name, and the suffix 'ic acid'.

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Chromic acid

A strong acid with the formula H2CrO4.

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Permanganic acid

A strong acid with the formula HMnO4.

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Sulfuric acid

A strong mineral acid with the formula H2SO4.

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Hydrosulfuric acid

A colorless and volatile acid with the formula H2S.

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Hyposulfurous acid

A diprotic acid with the formula H2SO2.

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Dichromic acid

An acid with the formula H2Cr2O7.

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Phosphorous acid

A diprotic acid with the formula H3PO5.

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Study Notes

Oxyacids and Their Nomenclature

  • Carbonous acid (H2CO2) is derived from the carbonite ion (CO22-).
  • Oxyacids are named based on the oxyanion they originate from; ions ending in -ite have one less oxygen than those ending in -ate.
  • Nitrous acid (HNO2) comes from the nitrite ion (NO2-).

Specific Acid Formulas and Names

  • Hypophosphorous acid (H3PO2) originates from the hypophosphite ion (PO23-), having two fewer oxygens than the phosphate ion (PO43-).
  • Chlorous acid (HClO2) is derived from the chlorite ion.

Acid-Formula Pairing

  • Correct acid and formula pairing includes hyposulfurous acid, which is represented as H2SO2.
  • Other pairs of acids and their formulas may not be accurately matched and should be verified.

Common Acids and Their Properties

  • Aqueous hydrogen chloride (HCl) is a prominent binary acid.
  • Chromous acid is represented by the formula H2CrO3, formed from the chromite ion (CrO32-).
  • The hypochlorous anion (ClO¯) forms hypochlorous acid (HClO).

Additional Acid Information

  • The formula for acetic acid is CH3COOH, a well-known organic compound.
  • Hydrochloric acid is named by the pattern "hydro + root + ic acid" used for binary acids.
  • Chromic acid has the formula H2CrO4, while permanganic acid is represented as HMnO4.
  • Sulfuric acid has the formula H2SO4, a widely used industrial acid.
  • Hydrosulfuric acid is represented by H2S, commonly known as hydrogen sulfide.
  • Hyposulfurous acid's formula is H2SO2, and dichromic acid corresponds to H2Cr2O7, derived from the dichromate ion (Cr2O72-).

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Description

Test your knowledge of molecular compounds, focusing specifically on binary and oxyacids. This quiz includes key definitions and naming conventions for various acids, helping you understand their composition and nomenclature.

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