<span>2 Fe(OH)2 +7 NaBrO + H2O =2 Fe(OH)3 +5 NaBr + 2NaBrO3
</span><span>3 Zn + KClO3 + 6 KOH + 3 H2O = 3 K2[Zn(OH)4] + KCl
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N(KOH)=200*1,176*0,2/56=0,84моль;
2KOH+H2SO4=K2SO4+2H2O
2 1
n(H2SO4)=0,84/2=0,42моль; m(H2SO4)в р-ре=0,42*98=41,16г;
m(H2SO4)р-ра=41,16/0,2=205,8;
V(h2SO4)р-ра=205,8/1,205=170,8.