InterviewSolution
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InterviewSolution
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tiesList the conclusions you will draw while studying the following properof ethanoic acid:(a) Odour(b) Solubility in water(c) Effect on litmus paper(d) Reaction with sodium hydrogen carbonate |
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Answer» a).It has a sour taste and pungent smell. It is the main component of vinegar. Vinegar is typically 3-7% solution ofacetic acidin water. b)A weakacidis one which doesn't ionise fully when it isdissolved in water.Ethanoic acidis a typical weakacid. It reacts withwaterto produce hydroxonium ions and ethanoate ions, but the back reaction is more successful than the forward one. The ions react very easily to reform theacidand thewater. c)It turns bluelitmus paperred, indicating that it isacidicin nature. However, it is a weakacidbecause it does not dissociate comple in aqueous solution.Acetic acidreacts with sodium bicarbonate to produce carbon dioxide. d)Sodium hydrogencarbonate on reaction with acetic acid releases carbon dioxide gas.NaHCO3+ CH3COOH → CH3COONa + H2O + CO2Test for carbon dioxide:The presence of carbon dioxide can be tested by bringing a burning splinter near the mouth of the cylinder containing carbon dioxide – it gets extinguished.If carbon dioxide is passed through limewater, it turns milky white.Ca(OH)2+ CO2→ CaCO3+ H2O Like if you find it useful |
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