Предмет: Химия, автор: egorov2015tm

ПОМОГИТЕ ПОЖАЛУЙСТА ДАЮ 65 БАЛЛОВ
Экспериментальный расчет массовой доли примесей речного песка в поваренной соли, массовой доли соли в растворе.
1. Взвесить смесь соли и речного песка, предварительно взвесив стаканчик. 2. Растворить смесь в минимально возможном количестве воды (до полного растворения соли). 3. Профильтровать смесь по правилам, достигая полной прозрачности фильтрата. Показать фильтрат и фильтр с речным песком учителю. 4. Осадок речного песка высушить и взвесить. 5. Рассчитать массовую долю примеси речного песка в поваренной соли. 6. Фильтрат взвесить, выпарить воду. В конце выпаривания огонь уменьшить во избежание разбрызгивания соли. 7. Взвесить соль. Рассчитать массовую доли соли в фильтрате. 8** Рассчитать массовую долю потерь при фильтровании и выпаривании.

Ответы

Автор ответа: dimanemcev420

Ответ:

650

Объяснение:

Масса равна 1% значит это будет 650

egorov2015tm: с решением надо мне

egorov2015tm: без него никак

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