Kimyodan boshlang’ich tushunchalar I – bob. Kirish

MODDANING FOIZ TARKIBIGA QARAB UNING
ENG ODDIY FORMULASINI TOPISH
Moddaning foiz tarkibi berilganda uning formulasi quyidagicha topiladi:
1 – masala. Tarkibida 63,22% - Mn, 36,78% - O bo’lgan moddaning eng oddiy formulasini toping.
Yechish: Mn : O ­_­63,22/55: 36,78/16 = 1,15 : 2,3 = 1 : 2 Demak: MnO₂
2 – masala. Tarkibida 36,84% - N, 63,16% - O bo’lgan moddaning eng oddiy formulasini toping. Demak: N₂O₃
3 – masala. Tarkibida 90,66% - Pb, 9.34% - O bo’lgan moddaning eng oddiy formulasini toping. Demak: Pb₃O₄
4 – masala. Tarkibida 35,63% - P, 64,37% - S bo’lgan moddaning eng oddiy formulasini toping. Demak: P₄S₇
5 – masala. Tarkibida 83,33% - C, 16,67% - H bo’lgan moddaning eng oddiy formulasini toping. Demak: C₅H₁₂
6 – masala. Tarkibida 28% - Fe, 24% - S, 48% - O bo’lgan moddaning eng oddiy formulasini toping. Demak: Fe₂S₃O₁₂ yoki Fe₂(SO₄)₃

I. Oksidlarning eng oddiy formulasini topish

1. 
   Tarkibida 27,27%-C, 72,73%-O bo‘lgan moddaning eng oddiy formulasini toping.
   
2. 
   50%S va 50% O bo‘lgan moddaning eng oddiy formulasini toping.
   
3. 
   89,54% Ba va 10,46% O bo‘lgan moddaning eng oddiy formulasini toping.
   
4. 
   46,67% Li va 53,33% O bo‘lgan moddaning eng oddiy formulasini toping.
   
5. 
   43,66%P va 56,34% O bo‘lgan moddaning eng oddiy formulasini toping.
   
6. 
   77.78% Fe va 22,22% O bo‘lgan moddaning eng oddiy formulasini toping.
   
7. 
   88,89 % Cu va 11,11 % O bo‘lgan moddaning eng oddiy formulasini toping.
   
8. 
   56,36 % P va 43,64% O bo‘lgan moddaning eng oddiy formulasini toping.
   
9. 
   40% S va 60% O bo‘lgan moddaning eng oddiy formulasini toping.
   
10. 
    70% Fe va 30% O bo‘lgan moddaning eng oddiy formulasini toping.
    
11. 
    46,67% Si va 53,33% O bo‘lgan moddaning eng oddiy formulasini toping.
    
12. 
    60% Mg va 40%% O bo‘lgan moddaning eng oddiy formulasini toping.
    
13. 
    53% Al va 72% O bo‘lgan moddaning eng oddiy formulasini toping.
    
14. 
    93,1%Ag va 6,9% O bo‘lgan moddaning eng oddiy formulasini toping.
    
15. 
    42,86 % C va 57,14% O bo‘lgan moddaning eng oddiy formulasini toping.
    
16. 
    74,2% Na va 25,8% O bo‘lgan moddaning eng oddiy formulasini toping.
    
17. 
    80,25% Zn va 19,75 % O bo‘lgan moddaning eng oddiy formulasini toping.
    
18. 
    68,42% Cr va 31,58% O bo‘lgan moddaning eng oddiy formulasini toping.
    
19. 
    86,6% Pb va 13,4% O bo‘lgan moddaning eng oddiy formulasini toping.
    
20. 
    70,37% F va 29,63% O bo‘lgan moddaning eng oddiy formulasini toping.