Răspuns:
Explicație:
a.
M H2SO4 = 2 + 32 + 4.16=98-----> 98g/moli
30,11 . 10 la 25 = 3011 .10²³molecule
1mol H2SO4-----6,022.10²³molec.
xmoli------------------3011.10²³
x= 3011.10 ²³ : 6,022.10²³ = 500moli H2SO4
m= n . M
m= 500moli. 98g/moli= 49000g H2SO4= 49 kg
b.
n= m :M
n= 16g : 2g/moli= 8 moli H2
V = 8moli . 22,4L/moli = 179,2 LH2
c.
VSO3= 22,4 m³
MSO3= 32 + 3.16=80----> 80g/mol
n= V : Vm
n= 22,4m³ : 22,4m³ = 1kmol SO3
m = n .M
m= 1kmol . 32kg/kmol= 32kg SO3
