When ethanoic acid reacts with sodium hydrogencarbonate, then a salt X is formed and a gas Y is evolved.
Name the salt X and gas Y. Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.
Name the salt X and gas Y. Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.
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Salt X is sodium ethanoate, $CH _3 COONa$; Gas Y is carbon dioxide, $CO _2$.
Activity: Take a boiling tube and put about 0.5g of sodium carbonate in it. Add 2ml of dilute ethanoic acid to the boiling tube (through a thistle funnel). We will observe that brisk effervescence of carbon dioxide gas is produced. Let us pass this gas through lime water taken in a test tube. We will find that lime water turns milky. Only carbon dioxide gas can turn lime water milky. So, this experiment proves that when ethanoic acid reacts with sodium carbonate, then carbon dioxide gas is evolved.
$\text{CH}_3\text{COOH}+\text{NaHCO}_3\rightarrow\text{CH}_3\text{COONa}+\text{CO}_2\uparrow+\text{H}_2\text{O} $
Activity: Take a boiling tube and put about 0.5g of sodium carbonate in it. Add 2ml of dilute ethanoic acid to the boiling tube (through a thistle funnel). We will observe that brisk effervescence of carbon dioxide gas is produced. Let us pass this gas through lime water taken in a test tube. We will find that lime water turns milky. Only carbon dioxide gas can turn lime water milky. So, this experiment proves that when ethanoic acid reacts with sodium carbonate, then carbon dioxide gas is evolved.
$\text{CH}_3\text{COOH}+\text{NaHCO}_3\rightarrow\text{CH}_3\text{COONa}+\text{CO}_2\uparrow+\text{H}_2\text{O} $
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