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calculati cantitatea de H2SO4 care reactioneaza cu hidroxid de potasiu pt a se obtine 200g KSO4

Răspuns :

M,H2SO4= (2gC+32gS+4x16gO)/mol=98g/mol
M,K2SO4=(2x39gK+ 32gS+4x16gO)/mol=174g/mol

98g....................................174g
H2SO4   + 2 KOH------>K2SO4  +H2O
x.........................................200g
x= 200x98/174gH2SO4................................CALCULEAZA !!!