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vvaaaaaaaa roggggggg , imiii treeee buiiiieeee reeeepeeedr!!!!!! Calculati cate molecule si cati atomi se gasesc in 196 g de acid sulfuric.

Răspuns :

Masa H2SO4=98
1 mol...... 98 g
X moli......196g
x=1*196/98= 2 moli
H2SO4 = 2 atomi de H+1 atom de S+4 atomi de O