Предмет: Химия, автор: flock48

9. Визначте формулу алкану, молярна маса якого становить 100г/моль.

Ответы

Автор ответа: derekasergej94

1

Ответ:

CnH2n+2 — загальна формула

12n + 2n + 2 = 100;

14n + 2 = 100;

14n - 98 = 0;

14n = 98;

n = 98/14 = 7;

Підставимо у формулу:

C7H2*7+2 = C7H14+2 = C7H16 — гептан.

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