LAB 9

Svante August Arrhenius b. 1859

TEMPERATURE AND CHEMICAL REACTIONS

REACTIONARY CHEMIST

Born in Sweden in 1859, Svante August Arrhenius taught himself to read when he was only three and he was a mathematical prodigy. He did well in school, and by 1881 he was studying how electrical current moves through chemical solutions like salt water. Atoms or groups of atoms that hold an electrical charge are called ions, and Arrhenius was the first chemist to propose the idea that when rock salt (sodium chloride) is dissolved in water, it splits into ions: positively charged sodium atoms and negatively charged chlorine atoms that are able to carry electrical current.

BIG IDEAS

Arrhenius went on to propose that chemical reactions in solutions took ...

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