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2014-03-25T19:10:25+02:00
Zn + 2 HCl----> ZnCl2 + H2
la 65 g Zn........2*36,5 g HCl
la 200 g Zn...........x g HCl            x = 200 * 2 * 36,5 / 65 = 224,61538 g
2 5 2