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Объяснение:
10000000000000 проц
Объяснение:
school is where we learn . Everyone remembers their first day at school. Today is the first of September. Exciting, festive, beautiful day. It was from that day that I understood the word "school" and how difficult it is to learn in the world of knowledge. Since then, every day at school has been unique for me. I found a lot of friends here. At each break, we communicate, and at each lesson you will learn more and more new and interesting things. The uniqueness of my school is that only we have such wonderful, kind and sensitive teachers who are able to find an approach to each student. In each lesson, they put a large part of their soul into us. Without knowledge, a person today cannot live in any country in the world. An educated person is valued anywhere in the world. Therefore, our teachers help each child to learn new material not only for good grades, but also for high-quality knowledge.
Рассчитываем массу испарённной воды: m(H2O)=m(р-ра) - m(соли) = 200 г 52,6 г = 147,4 г
Поскольку растворимость вещества рассчитывается на 100 г воды, составим пропорцию:
52,6 г соли в 147,4 г воды
Х г солив 100 г воды
Отсюда Х = (52,6*100)\147,4 = 35,7 г Это и есть растворимость хлорида натрия при 10 градусах!Рассчитываем массу испарённной воды: m(H2O)=m(р-ра) - m(соли) = 200 г 52,6 г = 147,4 г
Поскольку растворимость вещества рассчитывается на 100 г воды, составим пропорцию:
52,6 г соли в 147,4 г воды
Х г солив 100 г воды
Отсюда Х = (52,6*100)\147,4 = 35,7 г Это и есть растворимость хлорида натрия при 10 градусах!
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