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taylakova63p06vpw
taylakova63p06vpw
20.05.2021 03:15 •  Химия

Какая масса соли образуется при взаимодействии соляной кислоты массой 8,8г с калий гидроксид массой 5 грамм

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Ответ:
sofiyabutina667
sofiyabutina667
20.05.2021

Hcl+Koh=kcl+h20

Хмм кол кислоты=0.241

Хмм кол щелочи=0.089

По недостатку хим кол соли =0.089

Масса соли=6.63 г

Объяснение:

4,6(91 оценок)
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Ответ:
MariyaKokhonova
MariyaKokhonova
20.05.2021

Дано:

n (BaSO4) = 0,1 моль

знайти:m (H2SO4), m (Ba (OH2))

рішення:

M (BaSO4) = 137 + 32 + 16 ∙ 4 = 233 г \ моль

m (BaSO4) = n ∙ M = 0,1 моль ∙ 233 г \ моль = 23,3 г

   х г          у г          23,3 г

H2SO4 + Ba(OH)2 = BaSO4 + H2O

  98 г        171 г          233 г

Обчислимо масу сірчаної кислоти необхідної для реакції:

х г --- 23,3 г

98 г --- 233 г

х = 98 г ∙ 23,3 г \ 233 г = 9.8 г

Обчислимо масу гідроксиду барію необхідної для реакції:

у г --- 23,3 г

171 г --- 233 г

х = 171 г ∙ 23,3 г \ 233 г = 17,1 г

Відповідь: m (H2SO4) = 9,8 г, m (Ba (OH) 2) = 17,1 г

Объяснение:

4,7(87 оценок)
Ответ:
кари345
кари345
20.05.2021

Дур*

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