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Chemistry > Alkanoic Acids > Flashcards

Alkanoic Acids Flashcards

1
Q

What is the general formula for alkanoic acids?

A

CₙH₂ₙ₊₁COOH

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2
Q

Where do organic acids naturally occur?

A

Vinegar (ethanoic)
Stinging nettles and ant’s sting (methanoic)
Rancid Butter (butanoic)
Citrus Fruits (citric)
Milk (lactic acid)

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3
Q

What are the physical properties of alkanoic acids?

A

They are covalent compounds, with a strong polar OH bond (stronger than the OH in alcohols), high boiling points, extremely soluble in water.

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4
Q

What occurs when Alkanoic acid is dissolved in water?

A

The acid is partially dissociates to give ‘free’ H+ ions

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5
Q

What are the reactions of alkanoic acids?

A

Reactions with Metals, Bases, Carbohydrates and Hydrogen Carbonates, Combustion(with dry acids) and Condensation / Esterification

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6
Q

Acid + Metal?

A

Salt + Hydrogen Gas

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7
Q

Acid + Carbohydrate / Hydrogen Carbonates?

A

Salt + Water + Carbon Dioxide

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8
Q

Acid + Base

A

Salt + Water

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9
Q

Combustion of Anhydrous Acids

A

Carbon Dioxide + Water

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10
Q

Condensation (Alkanoic Acid + Alcohol)

A

Ester + Water

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Chemistry (7 decks)

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