Table of Contents
What happens if you add sulfuric acid to nitric acid?
With nitric acid itself, sulfuric acid acts as both an acid and a dehydrating agent, forming the nitronium ion NO2+, which is important in nitration reactions involving electrophilic aromatic substitution.
Why con H2SO4 is used for HNO3 preparation?
Sulphuric acid has a high boiling point. Due to it’s non-volatile nature, it is used to prepare volatile acids such as HCl, HNO3 and acetic acid from their salts.
Why HNO3 Cannot be used in titration?
The acid used in this titration is dilute sulphuric acid. Nitric acid is not used as it is itself an oxidising agent and hydrochloric acid is usually avoided because it reacts with KMnO4 according to the equation given below to produce chlorine and chlorine which is also an oxidising agent in the aqueous solution.
Why Dil H2SO4 added during titration?
Sulphuric Acid (H2SO4) is used in the redox titration process because it provides the H(+) ions necessary for the reaction to occur more quickly whilst the sulphate(-) ions barely react during the reaction.
What is the difference between nitric and sulfuric acid?
Nitric acid has an acrid smell which may be offensive to some people, whereas pure sulfuric acid does not. This means that an ELISA plate reader which calls for cleaning with a sulfuric acid solution could, in theory, be cleaned with a slightly milder nitric acid solution.
What is the pH of aqua regia?
Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals. Since, it is a mixture of concentrated acids, its pH value is almost near to zero. This means that it is highly acidic. Aqua Regia’s pH is between 1 to 0.
Why is concentrated H2SO4 used instead of concentrated HNO3?
Hi. The sulphuric acid is used in the preparation of hydrogen chloride {HCl} and nitric acid {HNO3} because it is a non-volatile{ it has a high boiling point} and HCl and HNO3 are volatile acids.
Why is H2SO4 preferred over acids?
Answer:Sulphuric acid is used. This acid is preferred to other acids because of its dehydrating properties.
Can aqua regia react with HCl and HNO2?
Normally, in HCl (hydrochloric acid) their are very few Au ions to react with the Cl- (chlorine ions). HNO2 (Nitric acid) can dissolve a few Au but then the solution becomes saturated and can not dissolve more. However Aqua Regia is HCl and HNO2, the HNO2 is a very strong oxidize it can produce the Au ions that are need for the Cl ion to react.
Is H2SO4 a base or an acid?
(Original post by shengoc) H2SO4 is a stronger acid than HNO3, therefore it donates proton to HNO3. In this case, HNO3 would be acting as a bronstead base.
Why does H2SO4 act as a bronstead base?
You get these gems as you gain rep from other members for making good contributions and giving helpful advice. H2SO4 is a stronger acid than HNO3, therefore it donates proton to HNO3. In this case, HNO3 would be acting as a bronstead base. I was trying to help the OP.
What metals can be dissolved in aqua regia?
More specifically: Platinum, gold and mercury can be dissolved in aqua regia but iridium and silver cannot. Palladium and silver are, however, soluble in nitric acid. Ruthenium can be dissolved in aqua regia only when in the presence of oxygen ( Why? will be asked in a separate question ), while rhodium must be in a fine pulverized form.