5.1 Organic Chemistry Objective: to identify organic compounds, and explain their properties and reactions Outcomes: All: I can list some uses of alcohols,

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Presentation transcript:

5.1 Organic Chemistry Objective: to identify organic compounds, and explain their properties and reactions Outcomes: All: I can list some uses of alcohols, carboxylic acids and esters (D/E) Most: I can identify and name alcohols, carboxylic acids and esters (C) Some: I can explain some reactions of alcohols, carboxylic acids and esters (A/B) Keywords: organic compounds, alcohol, carboxylic acid, ester, pH

What is an organic compound? I can identify and name alcohols, carboxylic acids and esters (C) These are all examples of organic molecules… Can you see what they have in common? A ‘backbone’ of CARBON ATOMS bound to hydrogen

Naming Organic Compounds I can identify and name alcohols, carboxylic acids and esters (C) ALKANES -ane C-C These ones you have met before… Which 2 groups of molecules (homologous series) are they each from? Can you name them? ALKENES -ene C=C ethane ethene

Naming Organic Compounds I can identify and name alcohols, carboxylic acids and esters (C) Remember the carbon naming…? Number of Carbon Atoms in Chain Start of Molecule Name 1Meth- 2Eth- 3Prop- 4But- ethanemethane propane butane

Naming Organic Compounds I can identify and name alcohols, carboxylic acids and esters (C) ALCOHOL Functional Group -OH This one you might know…. ethanol Can you think of any uses of alcohols? methanol What about this one? drinks fuels

Naming Organic Compounds Carboxylic acids This is ethanoic acid. What about this one?

Match the organic compounds to the correct pictures. Write down your answers. 1. alcohol 2. carboxylic acid 3. ester I A H D C B G J -OH -COO- -COOH E F K

Properties & Reactions of Alcohols I can explain some reactions of alcohols (A/B) Complete the equation: ethanol + oxygen → _________ + _______ Write the balanced symbol equation: COMBUSTION water carbon dioxide C 2 H 5 OH + O 2 → CO 2 + H 2 O3 2 3

Properties & Reactions of Alcohols I can explain some reactions of alcohols (A/B) What is the pH of alcohol in water? pH7 HYDROGEN GAS What do you observe when sodium is added? What gas is formed?

Naming Organic Compounds I can identify and name alcohols, carboxylic acids and esters (C) This one is a CARBOXYLIC ACID CARBOXYLIC ACID - anoic acid -COOH ethanoic acid Can you think of any uses of carboxylic acids? What about this one? propanoic acid vinegar

I can explain some reactions of carboxylic acids (A/B) What do you observe when 1moldm -3 ethanoic acid is added to calcium carbonate? CARBON DIOXIDE GAS What do you observe when 1moldm -3 HCl is added to calcium carbonate? What gas is formed? Properties & Reactions of Carboxylic Acids But slower… What is the pH of carboxylic acid in water? pH2-5

I can explain some reactions of carboxylic acids and alcohols (A/B) Reactions of Carboxylic Acids and Alcohols + → ethyl ethanoate ESTER -yl -anoate alcohol c.acid -COO- I can identify and name alcohols, carboxylic acids and esters (C)

Use of esters I can list some uses of alcohols, carboxylic acids and esters (D/E) Can you think of any uses of esters? perfumesflavourings biofuels

Match the organic compounds to the correct pictures. Have you changed your mind? 1. alcohol 2. carboxylic acid 3. ester I A H D C B G J -OH -COO- -COOH E F K I can identify (C) and list some uses of alcohols, carboxylic acids and esters (D/E)

How did you do…? 1. alcohol 2. carboxylic acid 3. ester I A H D C B G J -OH -COO- -COOH E F K D I can identify (C) and list some uses of alcohols, carboxylic acids and esters (D/E)