The concentration of hydrogen ions in the sulfuric acid is greater than the concentration of hydrogen ions in the hydrochloric acid (of the same concentration of acid). Therefore the frequency of effective collisions is greater for the sulfuric acid, leading to a faster initial rate of reaction.
Is sulfuric acid more reactive than hydrochloric acid?
Practically speaking, neither is “stronger” or “weaker”, rather it depends on what the acid is reacting with. Sulfuric reacts more “strongly” with some things (like cellulose) than hydrochloric and hydrochloric reacts more strongly than sulfuric in other cases.
What is the major difference between hydrochloric acid and sulfuric acid?
Main Difference – Hydrochloric Acid vs Sulfuric Acid
Hydrochloric acid and sulfuric acid are two strong acids. The main difference between hydrochloric acid and sulfuric acid is that hydrochloric acid is monoprotic whereas sulfuric acid is diprotic.
Why is sulfuric acid the strongest acid?
Sulfuric acid is a very strong acid; in aqueous solutions it ionizes completely to form hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−). In dilute solutions the hydrogen sulfate ions also dissociate, forming more hydronium ions and sulfate ions (SO42−).
Why does aluminum react with hydrochloric acid?
As aluminium has three electrons in its outer shell, the reaction requires a ratio of two aluminium molecules to six hydrochloric acid molecules. This is because each chlorine atom in the hydrochloric acid acquires an electron from the aluminium and loses a hydrogen atom.
What acid is stronger than hydrochloric acid?
For instance, hydrochloric acid comes in at about pH 1.6, nitric acid at 1.08 and pure sulfuric acid at a whopping pH -12. That makes sulfuric acid the strongest ‘normal’ acid you’ll find.
What’s the strongest acid in the world?
fluoroantimonic acid
The world’s strongest superacid is fluoroantimonic acid, HSbF6. It is formed by mixing hydrogen fluoride (HF) and antimony pentafluoride (SbF5). Various mixtures produce the superacid, but mixing equal ratios of the two acids produces the strongest superacid known to man.
Why H2SO4 is used instead of HCl?
Sulfuric acid is used because it is stable towards oxidation; whereas, for example, hydrochloric acid would be oxidized to chlorine by permanganate.
What would happen if hydrochloric acid were added instead of sulphuric acid?
Originally Answered: What happens when HCl is reacted with H2SO4? Since HCl is slightly less acidic than H2SO4, it will act like a base and accept a proton. And since HCl in solution consist of H3O+ and Cl-, Cl- will become protonated to become HCl(g).
What is the weakest acid in the world?
Hydrofluoric acid
Hydrofluoric acid is the only weak acid produced by a reaction between hydrogen and halogen (HF). Acetic acid (CH3COOH), which is contained in vinegar, and oxalic acid (H2C2O4), which is present in some vegetables, are examples of weak acids.
How strong is the strongest acid?
Fluoroantimonic acid is the strongest super-acid known in existence. It is 20 quintillion times more acidic than 100% sulfuric acid, and it can dissolve glass plus a host of other substances.
Why is H2SO4 a stronger acid than HSO4?
Sulfuric acid is a strong acid because the HSO4- anion is a stable anion due to the resonance and inductive stabilization of the negative charge. Obviously, HSO4- is going to be a weaker acid because it’s harder to stabilize 2 anionic charges than one.
What happens when aluminium reacts with sulphuric acid?
Aluminium reacts with sulphuric acid to form aluminium sulfate and hydrogen.
Why does hydrochloric acid react with aluminum but not copper?
Copper doesn’t normally react with hydrochloric acid to produce hydrogen gas because as a metal, copper isn’t active enough to displace hydrogen. More active metals (zinc, aluminum, calcium, magnesium) are more reactive than copper which lies below hydrogen on the electrochemical series (ECS).
Will sulfuric acid clean aluminum?
Acid for Cleaning Aluminum
You can also use diluted mixtures of water and sulfuric acid for the same purpose.
What do you add to sulfuric acid to make it stronger?
Piranha solution should always be prepared by adding hydrogen peroxide to sulfuric acid slowly, never in reverse order.
What acid eats stones?
carbonic acid
When carbonic acid flows through the cracks of some rocks, it chemically reacts with the rock causing some of it to dissolve. Carbonic acid is especially reactive with calcite, which is the main mineral that makes up limestone.
What does pH stand for?
potential hydrogen
pH, explained
The abbreviation pH stands for potential hydrogen, and it tells us how much hydrogen is in liquids—and how active the hydrogen ion is.
What is the pH of stomach acid?
The normal volume of the stomach fluid is 20 to 100 mL and the pH is acidic (1.5 to 3.5). These numbers are converted to actual acid production in units of milliequivalents per hour (mEq/hr) in some cases. Note: Normal value ranges may vary slightly depending on the lab doing the test.
Why sulphuric acid is used in iodometric titration?
The principle is that iodine is liberated by adding sulphuric acid to a solution of iodised salt. Potassium iodide solution is added to keep the iodine in the dissolved state. Iodine liberated is titrated with sodium thiosulphate solution to form sodium iodide and sodium tetrathionate.
Why is H2SO4 used instead of HCl and HNO3?
HCl isn’t suitable, as will be oxidised to chlorine gas by the permanganate whilst HNO3 is an oxidising agent itself and would interfere with the reaction. H2SO4 (as long as it’s dilute) doesn’t have this problem, so is the preferred medium for such oxidations (especially for titrations).
Contents