Вопрос школьника по предмету Химия
Вычислите массовую долю вещества в растворе, если в 200 г воды растворили 10 г сахара
Ответ учителя по предмету Химия
Ответ: 4,76 %
Объяснение:
ω(сахара) = (m(сахара) · 100% ) ÷ m(раствора)
m(раствора) = m(сахара) + m(H₂O) = 10 г + 200 г = 210 г
ω(сахара) = (10 г × 100%) ÷ 210 г = 4,76 %
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