Anonymous
Anonymous asked in 科學及數學化學 · 9 years ago

neutralization

CaCO3+2HNO3---->Ca(NO3)2+H20+CO2

neutralization既definition唔系acid+base會只系出H20同埋SALT咩?

咁點解以上既chemical equation出左CO2都系neutralization既?

同埋可唔可以詳細闡述titration既步驟同埋如何清洗工具?

1 Answer

Rating
  • 9 years ago
    Favorite Answer

    Definition for neutralization should be : A non-redox reaction between an acid and base, where these acid and base can be Arrhenius, Bronsted Lowery, and Lewis acid or base .

    For your reaction, CaCO3 is an Bronsted Lowery acid and HNO3 is a Bronsted Lowery base, so their reaaction is neutralization.Whether CO2 is

    formed is not important.

    Bronsted Lowery acid : A proton donator

    Bronsted Lowery base: A proton accepter

    Lewis acid : A electron acceptor without changing its oxidation number

    Lewis base: A electron donator without changing its oxidation number

    Arrhenius acid : A chemical that will give H+ when dissolved in water

    Arrhenius base: A chemical that will give OH- when dissolved in water

    A chemical can belongs to more than one type of acid or base

    e.g. H2O is a acid and a base. It act as acid when donate proton while act as base when accept proton.

    H2O +H2O -> H3O+ + OH-

    donate H+ accept H+ after accept H+ after donate

    Example:

    NH3 +BF3->NH3BF3 is also a neutralization.

    NH3 is a Lewis base, while BF3 is a Lewis acid.

    Your definition can be found on some CE textbook but it is not correct.

    My definition is just a conclusion from my obsevation on AL chem reaction and definitions, but may be not exactly correct.

Still have questions? Get your answers by asking now.