Răspuns:
Explicație:
a ) MO2=2Ao=2*16 =32 u.a.m
n=m/M=3,2Kg/32Kg/Kmol=0.1 Kmol
1kmol............6,023*10 ²³k particule
0,1............................x
b) MCO2=AC+2AO=12+2*16=44u.a.m
n=m/M=4,4 g/44g/mol=0,1 moli
1mol ...............6,023*10 ²³
0,1mol...............x
c) M=AN+3AH=14+3*1=17 u.a.m
n=m/M=34g/17 g/mol=2 moli
1mol.........................6,023*10 ²³
2moli.................................x