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Laabri

3.9 Carboxylic Acids and Derivatives

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Last updated about 4 hours ago
25 Nsɛmmisa
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1.

Give the general equation of the reduction of ethanoic acid to an aldehydes.

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2.

Define a weak acid

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3.

Draw the intermolecular interactions between molecules of methanoic acid

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4.

What is product between propanoic acid and sodium?

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5.

What is the reaction between chloroethanoic acid and sodium carbonate

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6.

Draw and name the product between ethanoic acid and ethanol with a strong acid catalyst.

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7.

Name this compound

3.3.9.1
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8.

Predict which one of the compounds, propan-1-ol, propanal and propanoic acid will have the highest boiling point. Explain your answer.

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9.

Esters have many important commercial uses such as solvents and artificial flavourings in foods.

Esters can be prepared in several ways including the reactions of alcohols with carboxylic acids, acid anhydrides, acyl chlorides and other esters.

Ethyl butanoate is used as a pineapple flavouring in sweets and cakes.

Write an equation for the preparation of ethyl butanoate from an acid and an alcohol.

Give a catalyst used for the reaction

(teacher note: carbox 3 #4)

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10.

Name all the products for: propanoic acid + NaOH

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11.

Name all the products for: ethanoic acid + NH3

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12.

Name all the products for: methanoic acid + Na2CO3

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13.

Name all the products for: ethanoic acid + Mg

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14.

Name all the products for: propanoic acid + methanol

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15.

Name all the products for: methanoic acid + propan-2-ol

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16.

Draw the equation and products of methyl ethanoate with water, an acid catalyst, and under reflux

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17.

Draw the equation and products of methyl ethanoate with sodium hydroxide, under reflux.

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18.
3.3.9.1
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19.
3.3.9.1
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20.

Write the names of the organic product formed in the four similar reactions of propanoyl chloride with water, methanol, ammonia and methylamine

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21.

Write an equation for butanoyl chloride reacting with propan-1-ol and ethylamine

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22.

Complete the following equation:

CH3CH2COCl + CH3CH2CH2NH2 -->

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23.

Write an equation for the reaction between ethanoyl chloride and water. Show that this is an example of hydrolysis.

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24.

Write an equation for the formation of ethanamide from ethanoyl chloride to show why two moles of ammonia are required for the reaction with one mole of the acylchloride

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25.

The ester propyl propanoate can be prepared by reacting propan-1-ol with either propanoic acid or propanoyl chloride. Write an equation for each method and discuss any advantages and disadvantages of using propanoyl chloride