you are provided with 90ml of distilled water and 10ml of concentrated sulphuric acid . (1) what is the correct way of preparing dilute sulphuric acid? give reason. (2) how will the concentration of H30+ ions change on dilution ?
Answers
Answered by
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Explanation:
(1) Always put acid in water , don't put water in the acid
Answered by
60
Answer:The 10ml concentrated H2SO4(Sulphuric acid) should be added drop wise to 90ml of water not the other way around.
2) The conc. of H30+ ions decreases on dilution
Explanation:
1) The H2SO4 reacts aggressively with H2O and is highly exothermic. If one drop of water falls into the acid solution then the solution will splash and can burn your skin. Therefore, acid should be added to water in a drop wise manner.
2) The H30+ ions are just H+ ions. The Concentration = Mole/Volume. Here the no. of mole of H+ doesn't the change rather you have added water and the Volume has increased. Therefore conc. of H30+/H+ ions decrease.
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