Question

Test to distinguish hydrochloric acid, sulfuric acid, nitric acid and ethanoic aicd

Answer 1

Answer:

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Explanation:Be careful doing this, but ethanoic acid, being an organic acid, will combust in air. Sulfuric acid won’t.

Be careful doing this, but ethanoic acid, being an organic acid, will combust in air. Sulfuric acid won’t.Pure ethanoic acid (often called glacial acetic acid) freezes just below room temperature (e.g in an ice bath). Again, sulfuric acid won’t freeze under those conditions.

Be careful doing this, but ethanoic acid, being an organic acid, will combust in air. Sulfuric acid won’t.Pure ethanoic acid (often called glacial acetic acid) freezes just below room temperature (e.g in an ice bath). Again, sulfuric acid won’t freeze under those conditions.If the acids are already in dilute aqueous solution, the test with barium chloride or barium nitrate, mentioned by others, is I think your best method.

Be careful doing this, but ethanoic acid, being an organic acid, will combust in air. Sulfuric acid won’t.Pure ethanoic acid (often called glacial acetic acid) freezes just below room temperature (e.g in an ice bath). Again, sulfuric acid won’t freeze under those conditions.If the acids are already in dilute aqueous solution, the test with barium chloride or barium nitrate, mentioned by others, is I think your best method.I don’t think litmus per se would work, but there may be an indicator that distinguishes, say, 1.0 M ethanoic acid from 1.0 M sulfuric acid due to the difference in pH caused by ethanoic acid being “weak” and sulfuric acid being “strong”. It appears from that gentian violet or malachite green are possibilities. But note that pH depends on concentration of the acid as well as strength of the acid. Of course a full titration curve, done with a pH meter, will allow one to distinguish a weak acid from a strong acid, and determine the pKa if the acid is weak.