14. Birikmaning eng sodda formulasi CₓHᵧ. Formuladagi x/y = 5/12 bo‘lsa, birikmadagi uglerod massasi vodorod massasidan necha marta ko‘p ekanligini aniqlang. Variantlar: 5; 5/12; 5/2; 12/5.

Uglerod va vodorod atomlarining nisbiy atom massalari mos ravishda 12 va 1. Shuning uchun massalar nisbati:

\(\dfrac{m(C)}{m(H)}=\dfrac{12x}{y}=12\cdot\dfrac{x}{y}=12\cdot\dfrac{5}{12}=5\).

Uglerod massasi vodorod massasidan 5 marta ko‘p.

Javob: 5 (birinchi variant).