Historias dos cientistas

Linha do tempo ácido e Base

Robert Boyle

(1627-1691)

Carcterizava os ácidos como substancias com sabor azedo,corrosivos e que mudavam a cor, as bases eram escorregadias ao tato.

Joseph Priestley

(1733-1804)

Antoine Lavoiser

Descobriu o gás HCI, que quando dissolvido em água formava uma solução ácida de nome Muriático

(1743-1794)

A parti de seus estudos inventou a palavra oxigenio, eafirmou que todos os acidos possuiam oxigénio

Justus Von Liebig

(1803-1873)

Svante Arrhenius

Arfimou que os ácidos continham hidrogénios que podem ser substituidos por átomos metalicos para produzir sais

(1859-1927)

Apresentou a primeira definição de ácido e base:Ácido: HA → H+ + A => HCI → H+ + CI Base XOH→X++OH => NaOH→ Na+OH

Gilbert Lews

Johannes Bronsted/Thomas Lowry

(1879-1947)(1874-1936)

(1875-1946)

Criou um novo modelo de ácidos e base.Ácido: quaLquer substancia que aceita um par de eletrões Base: quaquer substancia que da um par de eletrões.

Concluiram que o fundamental era ácidos -base que sao trasferidad de um protao para outro Base recebe um protao do ácido

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