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2KOH + H2SO4 =K2SO4 +2H2O сколько граммов гидроксида калия понадобится для превращения 70 грамм серной кислоты в нормальную соль ?
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Автор:
braylen - 6 лет назад
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H2SO4 + 2KOH = K2SO4 + 2H2On(H2SO4) = 70/98 = 0,714 мольn(KOH) = 0,714*2 = 1,43 мольm(KOH) = 1,43*56 = 80,08 г
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Автор:
fraulinef02u - 6 лет назад
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