Table of Contents
Which is a stronger acid HS or H2S?
The greater the ability of a species to accept a H+ from another species, the greater its base strength. Organic chemists customarily compare the strength of bases using the strengths of their conjugate acids, measured as pKa. HF is a stronger acid than H2S. Thus, HS ¯ is a stronger base than F ¯.
How would you account for the following H2S is more acidic than H2O?
As a result, S-H bond length increases and hence the bond dissociation energy of S-H is less than O-H. Therefore S-H easily loses H+ and is more acidic than H2O.
Which is most acidic H2O H2S h2se H2Te?
H2Te is the most acidic among the three.
How acidic is H2O?
Pure water has a pH of 7, neutral.
Which is more acidic than H2O Because?
H2S is more acidic than H2O because atomic number of sulphur is higher than oxygen.
Which is the strongest acid in the following?
Since, in HClO4, oxidation number of Cl is highest, so, HClO4 is the strongest acid among the given acids.
Is H2O a strong acid?
H2O has a pKa of 15.7 making it a weak acid. It is unclear if by OH you mean OH- (hydroxide) or an alcohol like CH3OH. If you mean OH-, it is an extremely weak acid with pKa around 35–40 (giving O2- as the conjugate base).
Why H2S is less acidic than H2Se?
Give reason. H2S is less acidic than H2Te because on moving down the group the size of the atom increases and ionization enthalpy decreases. But in case of H2Sthe bond dissociation is less and hence acidity is lower. …
Is h20 acidic or basic?
Pure water is neither acidic or basic; it is neutral.
Which water has the best pH level?
With a pH of 9.5, silky-smooth taste, and extra electrolytes, Essentia Water takes the top pick for alkaline waters. It’s also the only premium bottled water that is listed in the Physicians’ Desk Reference and is clinically shown to hydrate better than regular tap water.
Is H2S strong or weak?
Hydrogen sulfide is a gaseous acid with a pKa of about 7. When you dissolve it into water it becomes hydrosulfuric acid, which is a weak acid.
Why is H2S a stronger acid than water?
Therefore H2S is a stronger acid, that is it more readily releases H+. If we dissolved water in liquid H2S we would expect the H+ concentration to decrease, so water would be a base. Hydrogen sulfide is a gaseous acid with a pKa of about 6-7. When you dissolve it into water it becomes hydrosulfuric acid, which is a weak acid.
Is hydrogen sulfide an acid or a base?
H2S makes an acid solution in water. Therefore H2S is a stronger acid, that is it more readily releases H+. If we dissolved water in liquid H2S we would expect the H+ concentration to decrease, so water would be a base. Hydrogen sulfide is a gaseous acid with a pKa of about 6-7.
What is the difference between H2S and H2Se?
One site indicated that H2Se is a bit stronger than H2S because the larger Se atom makes HSe- more stable than HS-. Water itself is amphoteric, producing both hydrogen ions and hydroxide ions. Kw= [H+] [OH-] = 1E-14 at 25 deg C
Why is H2O more polar than H2S?
Oxygen (O) is more electronegative than sulfur (S). This means that H2O more polar than H2S. This means that the forces of attraction between H2O molecules is grater than that in H2S molecules, making it harder to separate them from one another to turn it into a gas.