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h2so4 being good oxidising agent oxidises the h2s to h2o and free sulphur.so conc h2so4 cant be used in preparation of h2s gas
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∙ 10y ago
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Why buffer used in mobile phase?
buffers in terms of chemistry is that which resists the pH of solution.and maintain H+ ion conc
Where is evaporation used?
evaporating is used in preparation of petrol, etc.
What is this element used for?
This element is used for that process, and for the preparation of those compounds.
Where is lipase involved in the digestion?
Lipase is used in the preparation ofdetergents.but,why it is used?
Why can concentrated H2SO4 and HNO3 not be used for laboratory preparation of H2S?
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.
What happen when H3PO4 is used instead of H2SO4 in preparation of dry NH3?
my nan is hot
Why HCl and HNO3 can be used in combination but HCl and H2SO4 not?
this is because when hcl and hno3 is mixed then it ionizes into h+and cl- and and and you may knaw rust is the mixing of foriegn particles in the pure substances. eg-fe+o2=fe2o3 so when gold is mixed with hcl and hnoc the it gives off aucl4. ie au pure gold is mixed with the pollutant cl4 similarly when h2so4 cant be used because s04 is not the neutral radical like no3 of hno3 thus s04 not being neutral and no3 being neutral h2so4 cant be used
What is h2so4 used for?
it is use for battery acid
Why is sulfur trioxide not added directly to water to form sulphuric acid?
In the manufacture of H2SO4, the reaction: H2O + SO3 → H2SO4 is not used because it is highly exothermic. Instead, the SO3 is dissolved in conc H2SO4 to form a substance called oleum, H2S2O7. This is then dissolved in water to produce H2SO4 H2S2O7 + H2O → 2H2SO4 This is a much more controllable reaction
Why conc sulphuric acid is not used to dry ammonia gas?
hy is NH3 not dried over conc.H2SO4?
Which indicator is used in titration of naoh and h2so4?
Methyl orange
What are the common additives and preservatives used in preparation?
additvisand preservatives used food preparation
What are common additives and preservatives used in food preparation?
additvisand preservatives used food preparation
What are the common additives and preservatives used in food preparation?
additvisand preservatives used food preparation
What reactants are used in making fertilizers?
2koh + h2so4 > k2so4 + h2o
Why buffer used in mobile phase?
buffers in terms of chemistry is that which resists the pH of solution.and maintain H+ ion conc
What are the common additives and preservatives in food preparation?
additvisand preservatives used food preparation
