Предмет: Химия, автор: Аноним

Пупсы, помогите please! Умоляю с ДАНО !!!!

Приложения:

Ответы

Автор ответа: iva54

Відповідь:

m(цукру) = 9,5г

Пояснення:

Дано:

m(роз-ну) = 190г

w = 5%
Знайти:

m(цукру) - ?

Розв‘язання:

w = m(роз.реч-ни) / m(роз-ну) • 100%
m(роз.реч-ни) = w • m(роз-ну) / 100

m(цукру) = 5 • 190 : 100 = 9,5 (г)

Відповідь: маса цукру 9,5 г.

Аноним: Спасибо, брат

Автор ответа: dobriakua

Дано:

m р-ну(цукру) = 190 г

ω(цукру) = 5%

Знайти:

m(цукру) - ?

Розв'язання:

1) m(цукру) = ω * m р-ну / 100% = 5% * 190 / 100% = 9,5 г.

Відповідь: Маса цукру становить 9,5 г.

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