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LC Chemistry Experiments > Reactions of Ethanoic acid > Flashcards

Reactions of Ethanoic acid Flashcards

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1
Q

sodium carbonate: how do we set up for this exp

A

place a spatula tip of sodium carbonate into a boiling tube
pour ethanoic acid into the boiling tube

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2
Q

sodium carbonate: why is fizzing observed when ethanoic acid is added

A

ethanoic acid reacts with sodium carbonate to form carbon dioxide gas, sodium ethanoate and water

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3
Q

sodium carbonate: what is observed when ethanoic acid is added

A

fizzing

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4
Q

sodium carbonate: how do we test for the presence of CO2

A

bubble gas through lime water, colour changes from colourless to milky white.

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5
Q

sodium carbonate: why do we bubble the gas produced through limewater

A

to prove that CO2 was the gas that formed

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6
Q

sodium carbonate: what result indicates a positive test for CO2

A

colourless to milky white

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7
Q

sodium carbonate: write the balanced equation for this reaction

A

2CH3COOH + Na2CO3—–> 2CH3COONa + CO2 + H2O

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8
Q

sodium carbonate: what are the products of this reaction

A

sodium ethanoate
water
carbon dioxide

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9
Q

Magnesium ribbon: how do we set up for this experiment

A

clean a piece of magnesium metal with with sandpaper and place in a test tube
add ethanoic acid and fizzing occurs

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10
Q

Magnesium ribbon: why do we clean the magnesium with sandpaper

A

to remove metal oxides on the surface

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11
Q

Magnesium ribbon: how do we confirm that Hydrogen gas was produced

A

hold a lighted wax taper over the neck of the test tube- hear a squeaky pop

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12
Q

Magnesium ribbon: write the balanced equation for this reaction

A

2CH3COOH + Mg ——> (CH3COO)2Mg + H2

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13
Q

Magnesium ribbon: what are the products of this reaction

A

magnesium ethanoate and hydrogen gas

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14
Q

ethanol: describe the set up of this experiment

A

place 2cm3 of ethanol in a test tube
add 1cm3 of GLACIAL ethanoic acid
add 3 drops of sulphuric acid and place in a hot water bath for 10 min

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15
Q

ethanol: what does the sulphuric acid act as

A

catalyst

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16
Q

ethanol: why is a fruity smell produced

A

alcohol and ethanoic acid react to for an ester which has a fruity smell

17
Q

ethanol: why is no colour change observed

A

ethyl ethanoate is colourless

18
Q

ethanol: write the balanced equation for this reaction

A

C2H5OH + CH3COOH —-> C2H5OCOCH3 + H2O

19
Q

ethanol: what are the products of this reaction

A

ethyl ethanoate and H20

20
Q

what are the 3 reactions of ethanoic acid

A

ethanol
sodium carbonate
magnesium ribbon

LC Chemistry Experiments (11 decks)

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