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laiz [17]
4 years ago
15

g Wine goes bad soon after opening because the ethanol in it reacts with oxygen gas from the air to form water and acetic acid ,

the main ingredient of vinegar. What mass of acetic acid is produced by the reaction of 8.26 of ethanol
Chemistry
1 answer:
Trava [24]4 years ago
3 0

Answer:

496 g

Explanation:

Let's consider the reaction between ethanol and oxygen to form acetic acid and water.

CH₃CH₂OH + O₂ → CH₃COOH + H₂O

The molar ratio of CH₃CH₂OH to CH₃COOH is 1:1. The moles of acetic acid produced by the reaction of 8.26 moles of ethanol are:

8.26 mol CH₃CH₂OH × (1 mol CH₃COOH/1 mol CH₃CH₂OH) = 8.26 mol CH₃COOH

The molar mass of acetic acid is 60.05 g/mol. The mass corresponding to 8.26 moles is:

8.26 mol × 60.05 g/mol = 496 g

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In solution H2SO3 produce H+ ions and SO3²⁻ ions. In the same way, NaOH produce Na⁺ and OH⁻ ions. The conductivity of a solution is directly proportional to the concentration of ions in a solution. During titration, you are adding more NaOH (That is, more Na⁺ and OH⁻ ions). But each moles of OH⁻ reacts with H⁺ ion producing H₂O. That means the moles of Na⁺ that you are adding = Moles of H⁺ are been consumed. The concentration of ions remains approximately constant. But, H⁺ ion conducts better than Na⁺ ion. That means before the equivalence point, conductivity is decreasing. But after the equivalence point you will add OH- ions in excess increasing ion concentration increasing the conductivity:

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