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Why can concentrated H2SO4 and HNO3 not be used for laboratory preparation of H2S?
Wiki User
∙ 10y ago
They can. Either one of these acids will produce Hydrogen Sulfide when reacted with a metal sulfide. The reaction is extremely vigorous and even violently so. It is thus best they are used dilute for safety. Also, these acids are oxidizing and H2S is reducing so it is not an efficient process. HCl or acetic acid etc are far better to use.
Wiki User
∙ 10y ago
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How do you valance s plus hno3 equals so2 plus no2 plus h2o?
10S + 40 HNO3 → 10 H2SO4 + 40 NO2 + H2OS + 6HNO3 → H2SO4 + 6NO2 + 2H2OS + 4HNO3 -→ SO2 + 4NO2 + 2H2O
Chemical formula for acid rain?
It is actually a mixture of very dilute H2SO4 and HNO3
Is MgCl An Acid?
Acids contain hydrogen, such as HCl, HNO3, and H2SO4. MgCl is therefore not an acid.
A compound that releases a proton when it dissolves in water?
Any Arrhenius acid as HCl,HNO3, H2SO4 etc.
Is rain and acid a rock chemical?
An acid rain contain acids as HNO3, H2SO4, HCl.
Why h2so4 is necessary in preparation of nitrobenzene?
H2SO4 is needed to first react with HNO3 to give NO2
What happens when phenol reacts with concentrated HNO3 plus H2SO4?
2,4,6-trinitrophenol
How can you differentiate between H2SO4 and HNO3?
by adding AgNO3, ppt. is formed in h2so4 not hno3.
How do you balance S HNO3 yields H2SO4 NO2 H2O?
This reaction is:S + 6 HNO3 = H2SO4 + 2 H2O + 6 NO2
Equation in preparation of oxalic acid?
2KMnO4 + 5C2H2O4 + H2SO4 à 2MnSO4 + K2SO4 + 10CO2
What is the ratio of HCl to HNO3 in aquarasia?
1 part of concentrated HNO3 by volume3 part of concentrated HCl by volume
What type of reaction is na2so4 plus HNO3?
NaNO3 + H2SO4
What is reaction of nonmetals with acids?
When dilute nitric acid (HNO3) reacts with non metals (excluding H2, C, N2 and O2) it forms acid from that non metal. For example, if HNO3 reacts with sulfur (S) it gives nitric oxide, water and sulfuric acid (H2SO4). It only reacts with carbon to form carbon dioxide (CO2) instead of its acid. Some more examples: HNO3 + P --> H3PO4 + NO + H2O HNO3 + S --> H2SO4 + NO + H2O HNO3 + Se --> H2SeO3 + NO + H2O HNO3 + C --> CO2 + NO + H2O HNO3 + S --> H2SO4 + NO + H2O
Mechanism for preparation of m-nitro aniline from m-dinitrobenzene?
dintro benzene is reduced in presence of Na2S2
King of acid?
Concentrated mixture of HCl and HNO3
What are three strong acid substances?
Some examples: HCl, HNO3, H2SO4.
Why it is necessary to add conc H2SO4 in conc HNO3 but not vice versa?
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