Write the structural formula of ethanol. What happens when it is heated with excess of conc. H2SO4 at 443K? Write the chemical equation for the reaction stating the role of conc. H... Write the structural formula of ethanol. What happens when it is heated with excess of conc. H2SO4 at 443K? Write the chemical equation for the reaction stating the role of conc. H2SO4 in this reaction.
Understand the Problem
The question is asking for the structural formula of ethanol, what occurs when it reacts with concentrated sulfuric acid at a specific temperature, and to write the chemical equation for that reaction while explaining the role of concentrated sulfuric acid in the process.
Answer
C2H5OH forms C2H4 with conc. H2SO4 at 443K. H2SO4 is a dehydrating agent.
The structural formula of ethanol is C2H5OH. When heated with excess conc. H2SO4 at 443 K, ethanol undergoes dehydration to form ethene (C2H4). The chemical equation is C2H5OH → C2H4 + H2O. Conc. H2SO4 acts as a dehydrating agent.
Answer for screen readers
The structural formula of ethanol is C2H5OH. When heated with excess conc. H2SO4 at 443 K, ethanol undergoes dehydration to form ethene (C2H4). The chemical equation is C2H5OH → C2H4 + H2O. Conc. H2SO4 acts as a dehydrating agent.
More Information
The reaction involves the removal of water (dehydration) from ethanol, facilitated by sulfuric acid, resulting in the formation of ethene, a common alkene.
Tips
A common mistake is to overlook sulfuric acid's role as a dehydrating agent, thinking it causes oxidation instead.
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