answersLogoWhite

0


Best Answer

That's still I have some confusion. You can never tell HCl is Stronger than H2SO4, because H2SO4 can donate two protons in reaction. So H2SO4 is seems stronger.

But in another way in water HCl has more HIGHER Ka value. So in that sense we can tell:

HCl is stronger.Added:

The number of protons in an acid molecule doesn't tell you about its strength. Look for instance at phosphoric acid: H3PO4 even has three protons (H+) but they are all three to be considered as weak!

The strength of an acid is ONLY determined by Ka (acid equilibrium constant) and called weak if Ka<1, or strong if Ka>1. For mono-protic acids like HCl, it means that more than about 50% to 65% is protolysed (has split of protons).

The pH however is SLIGHTLY determined by the number of protons (being 1 or 2) but only for strong acids: pH is at maximum 0.3 pH units lower for a strong 'double proton' acid compared with a 'single proton' acid. ( -log10 of 2 equals -0.3). With weak acids the second protolysis can mostly be neglected.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

2d ago

H2SO4 is less strong than HClO4 because the sulfuric acid, H2SO4, is a diprotic acid, meaning it can donate two protons, while perchloric acid, HClO4, is a monoprotic acid that can donate only one proton. HClO4 has a higher tendency to donate its proton, making it a stronger acid compared to H2SO4.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

When NH4OH reacts with HCl it gives dense white fumes.

NH4OH + HCl --> NH4Cl + H2O

dense white fumes

When H2SO4 reacts with HCl it gives a ppt rather than dense white fumes

NH4OH + HSO4--> (NH4)2SO4 +H2O

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

acidity of Perchloric acid is greater than Sulphuric due to the resonance stability of Perchlorate ion or you can say resonance delocolization.this leads to greater stability.resonance delocalization of pi-electrons means that in perchlorate ion,the chlorine atom is completely covered by its 4 oxygen atoms and there is no lone pair of electrons on the chlorine atom.charge of the ion is completely and evenly spread over all 4 oxygen atom.this leads to a well-balanced resonance stabilized structure. and as you know that a strong acid dissociates or ionizes completely or to a greater extent.as the stability of anion or conjugate base is greater;this leads to the greater strength of perchloric acid-

a comparison will make the idea more clearer;

1-pKa of HClO4 is 10 and pka of H2SO4 IS 1.9

2-any d/f in bond strength is due 2 d/f b/w Cl and S

WE CAN ALSO ANSWER that the electronegativity of the conjugate base of sulfuric acid is greater so it tend to attract the hydrogen ion more and less likely to release it,consequently decreasing its strength

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

Yes, nitric acid is very strong, hydrogen sulfide is very weak (pKa = 6.9).

This answer is:
User Avatar

User Avatar

Wiki User

7y ago

h2s04 is stronger

This answer is:
User Avatar

User Avatar

Wiki User

8y ago

I suppose that HCl is stronger.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

Yes

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why H2SO4 is less stronger than HClO4?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why HClO4 is strong acid than HClO3?

HClO4 is a stronger acid than HClO3 because HClO4 has a more electronegative central atom (Cl) which pulls the proton away more easily, resulting in a more stable perchlorate ion after donation of the proton. This stability of the conjugate base contributes to the overall strength of the acid.


Which acid is stronger HOCl or HOBr?

HOCl is a stronger acid than HOBr because chlorine is more electronegative than bromine, making the O-H bond in HOCl more polar and easier to break. As a result, HOCl will more readily donate a proton in solution compared to HOBr.


Is a carbonic acid weak or strong?

Carbonic acid is considered a weak acid, as it only partially ionizes in water to produce hydrogen ions and bicarbonate ions. This results in a relatively low concentration of free hydrogen ions in solution compared to a strong acid like hydrochloric acid.


Why is HSO4 a weaker acid than H2SO4?

HSO4 is a weaker acid than H2SO4 because the presence of the additional hydrogen atom in H2SO4 makes it more likely to donate a proton, resulting in a stronger acid. HSO4, on the other hand, only has one acidic hydrogen atom, making it less likely to donate a proton and therefore weaker in acidity.


Is dilute sulfuric acid a stronger acid compared to concentrated sulfuric acid?

No, although "concentrated" sulfuric acid (essentially pure H2SO4) is less dissociated than dilute sulfuric acid, simply because there's no water around for it to dissociate in.


What is the name for aqueous HCLO4?

This compound, HCLO4, is perchloric acid.


Will cu replace H from H2SO4?

No. Copper will not replace hydrogen in sulfuric acid because it is less reactive than hydrogen.


Is Earth's gravity stronger than the gravity on Venus?

Yes. Venus has less mass and therefore has less gravity.


Does Mercury have stronger or weaker gravity than Earth?

There less gravity on Mercury than on Earth.


What makes a chimpanzee 7 times stronger than a man?

Chimps are not 7 times stronger than men. Experiments from the 1920s found they were 4 times stronger. It is theorized that they are so much stronger than us because they have less gray matter in their spinal cords. This means they have less muscle neurons to activate smaller muscle groups. They therefore are able to access larger groups of muscles all at once.


Why are there metal joints in the middle of the bridge?

because it is less stronger than the sides of the bridge.


Is the Moon's gravity stronger than the earth's gravity?

Less, about 1/6th of Earths.