0
Its because of electronegativity.
Hydrogen is very positive. Oxygen and Sulfur are very negative. Oxygen is more negative, though, than sulfur.
Because of this, oxygen holds onto the hydrogen better than sulfur. So H2S is a stronger acid because sulfur can't hang onto that hydrogen as well as oxygen can. Remember, to be a good acid, you need to be able to loose your hydrogen atoms.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoBecause S has a larger atomic radius than O, the conjugate base of hydrogen sulphide is more stable than the conjugate base of water. S is more polarizable. Also, SH- is a much weaker base than OH- (a strong base).
Wiki User
∙ 13y agoThe H-S bonds in H2S are weaker than the H-O bonds in H2O, therefore H2S gives up a proton (H+) more easily than H2O, making it a better acid.
Wiki User
∙ 9y agoIt is stronger because it has a Hannett acidity function.
Add your answer:
Earn +20 pts
Why h2s is acidic and h2o is neutral?
H2S is only acidic in reference to water(!). Of coarse H2O is neutral referred to water because it is the S A M E .Even water can be both acid A N D base at the same time, though a bit weaker acidic than H2S, but a bit more stronger base.
Why is H2S acidic in water?
H2S -when dissolved in water- is able to partially donate protons to a water molecule, making it weakly acidic. H2S + H2O--> HS- + H3O+
Why H2O is more polar than H2S?
Oxygen is more electronegative than sulfur, resulting in more polar bonds with hydrogen.
Why is the boiling point of AsH3 lower thanNH3?
NH3 is more polar than AsH3, this is the same as comparing H2O and H2S.
Why H2O is liquid and H2S is gas?
intermolecular hydrogen bonding that is prsnt in H2O while absnt in H2S....:)
Why h2s is acidic and h2o is neutral?
H2S is only acidic in reference to water(!). Of coarse H2O is neutral referred to water because it is the S A M E .Even water can be both acid A N D base at the same time, though a bit weaker acidic than H2S, but a bit more stronger base.
Why is H2S acidic in water?
H2S -when dissolved in water- is able to partially donate protons to a water molecule, making it weakly acidic. H2S + H2O--> HS- + H3O+
Who has the most polar bond H2O H2S H2?
H2 molecule is the least polar. Between H2O and H2S, the most polar will be H2O as oxygen is more electronegative than sulphur.
Which is more polar h2s or h2o?
H2O is more polar as oxygen is more electronegative than sulfur and will therefore attract the electrons more than sulfur
Why H2O is more polar than H2S?
Oxygen is more electronegative than sulfur, resulting in more polar bonds with hydrogen.
Why is the boiling point of AsH3 lower thanNH3?
NH3 is more polar than AsH3, this is the same as comparing H2O and H2S.
Why H2O is liquid and H2S is gas?
intermolecular hydrogen bonding that is prsnt in H2O while absnt in H2S....:)
Is h2s gas acidic in nature?
Yes, it is mildly acidic.
Strongest acid HCl H2O HI H2S ranking weakest to strongest?
Strongest---------------> Weakest HI, HCl, H2S, H2O According to MasteringChemistry.com
What is the equation for photosynthesis using CO2 and H2S?
It is not using H2S gas. It is using H2O liquid.
Balance this equation lioh plus h2s equals li2so4 plus H2O?
liho+h2s=
What gas CH4 OR H2S heavier?
H2S is heavier than CH4.It weighs more than twice.
