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Give the balanced chemical equation of the following reactions:
(i). Neutralization of NaOH with ethanoic acid.
(ii). Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
(iii). Oxidation of ethanol by acidified potassium dichromate.
(iv). Combustion of ethanol.
(i). Neutralization of NaOH with ethanoic acid.
(ii). Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
(iii). Oxidation of ethanol by acidified potassium dichromate.
(iv). Combustion of ethanol.
i. Neutralisation reaction of ethanoic acid:
and water is formed when ethanoic acid reacts with sodium hydroxide.
\(CH_3COOH\) + \(NaOH\) \(\rightarrow\) + \(H_2O\)
ii. Evolution of \(CO_2\):
reacts with weaker bases such as (\(Na_2CO_3\)) and sodium bicarbonate (\(NaHCO_3\)), forming its salt, water along with the liberation of brisk effervescence (\(CO_2\)).
\(2CH_3COOH + NaCO_3 \rightarrow 2CH_3COONa + CO_2 + H_2O\)
iii. Oxidation of ethanol:
is formed when ethanol is with alkaline potassium permanganate (\(KMnO_4\)) or potassium dichromate (\(K_2Cr_2O_7\)).
\(CH_3-CH_2-OH\) \(\xrightarrow[2(O)]{K_2Cr_2O_7}\) \(CH_3-COOH\) + \(H_2O\)
iv. Combustion of ethanol:
Ethanol is a and highly liquid. Carbon dioxide (\(CO_2\)) and water are formed when ethanol reacts with oxygen \(O_2\).
\(CH_3CH_2OH + 3O_2 \rightarrow 2CO_2 + 3H_2O\)
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