SANA: 4- Nazorat ishi 1. Odam tanasining 75% ini suv tashkil etsa, og’irligi 70 Kg bo’lgan odamda nechta molekula suv bo’ladi .
2. Vodorodga nisbatan zichligi 35 ga teng bo’lgan SO2 va SO3 gazlari
aralashmasining 8 litr hajmini yondirish uchun qancha hajm (l,n.sh ) kislorod sarf bo’ladi. A.1,5 B. 2,9 S. 5,0 D. 10,0
3.Gazning geliyga nisbatan zichligi 16 ga teng bo’lsa, shu gazning
vodorod va havoga nisbatan zichligini toping.
4. 20 litr ammiakning normal sharoitdagi massasini, modda miqdorini,
molekulalar sonini, hamda atomlar sonini toping
5.Yarim mol miqdordagi ammiak 220 C va 177,32 KPa bosim ostida
joylashtirilgan. Shu gazning tarkibidagi vodorod atomlari sonini hisoblang.
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