Предмет: Химия, автор: army9738

2. Растворить 60 г NaCl в 250 г воды. Найдите
процентную и Молярную концентрации
Полученного окрашенного раствора (плотность
1,088 г/мл). A) 16,7; 2.2 Б) 17,6; 4,2 В) 18,6; 8,6 г)
19,4; 3,6
14.

Ответы

Автор ответа: dasshtrudel

1

Ответ:

г) 19,4; 3,6

Процентная

W(NaCl)=60/(250+60)=0,1935 - 19.4%

Молярная

Cm(NaCl)=(1000*1,088*0,194)/58,5=3,6 моль/литр

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