H 2 S O 4 on KI because H 2 S O 4 is an oxidising agent and HI is strong reducing agent. Generally, both Hydrochloric acid (HCl) and Sulfuric acid (H 2 SO 4) are really strong acids compared to any other acids. Strong acids are listed at the top left hand corner of the table and have Ka values >1 2. What makes them "strong" is the fact that they completely dissociate into their ions (H + and an anion) when they are mixed with water. 3. Strong dehydrating acids (H2SO4, H3PO4) favor elimination (dehydration) in alcohols. Hydrogen iodide (H I) is a diatomic molecule and hydrogen halide. 1. Expert Answer The strong bases are listed at the bottom right of the table and get weaker as we move to the top of the table. Sulfuric acid ({eq}H_2SO_4 {/eq}) is a stronger acid than sulfurous acid ({eq}H_2SO_3 {/eq}). I don't know about HSO3- and H2SO3, but if you mean HSO4 and H2SO4, then the latter is stronger. See the answer. However, HCl is stronger than H 2 SO 4. Explain the following observations: a. HNO3 is a stronger acid than HNO2 b. H2SO4 is a stronger acid than H2SeO4 c. ¬HI is a stronger acid than HCl. Here are the chemical equations for the dissociations of the two acids. These compounds are considered as oxyacids. Increased electronegativity doesn't translate to stronger bonds. In fact, there is not a more important part of an organic chemistry reaction than the nucleophile and the electrophile. HI cannot be prepared by the action of conc. Strong nucleophiles: This is VERY important throughout organic chemistry, but will be especially important when trying to determine the products of elimination and substitution (E1, E2, SN1, SN2)reactions. HI reduces sulphuric acid to sulphur dioxide and itself is oxidised to iodine. Hydrochloric acid is the stronger of the two. This problem has been solved! You can drink diluted acetic acid (the acid found in vinegar), yet drinking the same concentration of sulfuric acid would give you a chemical burn. HF is a weak acid, but very dangerous (you may hear it etches glass, that’s because the SiF bond is the strongest bond) HCl and the rest of them (HBr, HI) are all “strong acids” but HI is the strongest (see pKa’s below) Due to poor orbital overlap (Iodine is much larger than H, and therefore the electrons are not very well shared, which imparts an extremely ionic character to the molecule) Of your list, HCl is the strongest acid, followed by acetic acid, ammonia, and sodium hydroxide. What are strong nucleophiles? Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid.Hydrogen iodide and hydroiodic acid are, however, different in that the former is a gas under standard conditions, whereas the … ¬HI Is A Stronger Acid Than HCl. H2SO4 Is A Stronger Acid Than H2SeO4c. Acid with values less than one are considered weak. In chemistry, there are seven "strong" acids. Which One Is Stronger Hcl Or H2so4. This is mainly due to the difference in the basicity of both acids. While acids tend to be corrosive, the strongest superacids (carboranes) are actually not corrosive and could be held in your hand. Every other acid is a weak acid.Because there are only seven strong acids, it is easy to commit the list to memory. Strong Vs. Corrosive . It has a $\ce{pK_{a}}$ around -6.3 while the $\ce{pK_{a}}$ of sulfuric acid is only around -3. The reason is that sulfuric acid is highly corrosive, while acetic acid is not as active.

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