Sage-Tips

Why H2SO4 is stronger than H2SO3?

We will rank them based on the number of oxygens and hydrogens in the oxoacid. H2SO4 has more oxygens than H2SO3, the additional oxygen will pull electrons towards itself making the O-H bond weaker. H2SO4 is a stronger acid than H2SO3 because b. it had more oxygens to weaken the H-O bond.

Why is H2SO4 a stronger acid?

Sulfuric acid (H2SO4) is a strong acid because it is completely ionized or dissociate in an aqueous solution and for every 1 mole, it gives two H+ ions and one SO42-. Sometimes H2SO4 can also act as a base when it reacts with superacids.

Why Sulphuric acid is stronger than Sulphuric acid?

Sulfuric acid is actually the weaker acid. The real question you are asking is: “What makes an acid strong?” The short answer is how easily the proton can leave the molecule in solution. That is, how readily HCl will break up into H+ and Cl- or H2SO4 will break up into H+ and HSO4-.

Is HNO3 stronger than HNO2?

If you were familiar with the list of 7 strong acids, then you’d know that HNO3 is a strong acid, and HNO2 is a weak acid. Thus, HNO3 would be stronger.

Which is stronger oxidizing agent HNO3 or H2SO4?

So, with respect to the first pKa for H2SO4, H2SO4 is a stronger acid than HNO3. For pKa2 (HSO4-) it is a weaker acid. But, it is the first pKa that is important, H2SO4 wins on the basis of pKa.

Is H2SO4 stronger than H2CO3?

Carbonic acid, on the other hand, has only three oxygen atoms, only one of which is not bonded to hydrogen. Ergo, there is more electron density around the O-H bonds in carbonic acid than there is in sulfuric acid, which means the bonds are stronger, the hydrogen atoms more difficult to remove, and the acid weaker.

Which is stronger H2SO4 or H2CO3?

Re: H2SO4 vs H2CO3 Because HSO4- has sulfur, which has a greater electronegativity than carbon, the anion is more stable (Due to electron delocalization) and thus its acid is stronger.

Is H2SO4 a strong or weak acid?

H2SO4 is a strong acid, but only for the first H+ which is produced. The remaining HSO4^- is a weak acid and only partially ionizes. H2SO4 → H+ (aq) + HSO4^- (aq) …………

Is H2S2O7 an acid or a base?

Called oleum, it is a mixture of H2SO4 and SO3. The 1:1 mole ratio is where the formula H2S2O7 comes from, but it is not a distinct molecule, nor does it ionize in water to make H+ and HS2O7^-. Therefore, one cannot really call H2S2O7 an acid in the sense that H2SO4 is an acid. Oleum is used in the manufacture of sulfuric acid.

What is the difference between HBr and H2SO4?

HBr is stroger acid then sulfuric acid (H2SO4). In aqueous medium The pH of HBr is 3.01 and that of H2SO4 is 2.75. This would mean that H2SO4 is more acidic having a lower pH but they are not generally compared since H2SO4 is an oxoacid and HBr, a haloacid.

What is X in HCl and H2SO4?

In HCl , X is Cl and in H2SO4 X is SO2 (OH)O. As an acid HX dissociates as HX=> H+ +X-. We can assume that the more exothermic or the less endothermic is the dissociation, the stronger is the acid.