
Gázelegyek átlagos moláris tömege
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Chemistry
•
11th - 12th Grade
•
Hard
Erzsébet Dóka
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9 Slides • 0 Questions
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Gázelegyek átlagos moláris tömege
By Erzsébet Dóka
2
N1:N2=20 db : 80 db=
=20x6x1023 : 80x6x1023
n1:n2=20 mol : 80 mol = 0,2 mol : 08 mol
ϰ(gáz1)= 20 n/n%
ϰ(gáz2)= 80 n/n%
V(gáz1)=0,2 mol x24,5 dm3/mol=4,9 dm3
V(gáz2)=0,8 mol x 24,5 dm3/mol=19,6 dm3
(gáz1)= 20V/V%
(gáz2)= 80V/V%
M=0,2x16+0,8x32=3,2+25,6=28,8 g/mol
Gázelegyek
3
M=0,2x16+0,8x32=3,2+25,6= =28,8 g/mol
Átlagos moláris tömeg 20:80
4
N1:N2=80 db : 20 db=
=80x6x1023 : 20x6x1023
n1:n2=80 mol : 20 mol = 0,8 mol : 0,2 mol
ϰ(gáz1)= 80 n/n%
ϰ(gáz2)= 20 n/n%
V(gáz1)=0,8 mol x24,5 dm3/mol=19,6 dm3
V(gáz2)=0,2 mol x 24,5 dm3/mol=4,9 dm3
(gáz1)= 80V/V%
(gáz2)= 20V/V%
M=0,8x16+0,2x32=12,8+6,4=19,2 g/mol
Gázelegyek
5
M=0,8x16+0,2x32=12,8+6,4= =19,2 g/mol
Átlagos moláris tömeg 80:20
6
m(gáz2) =B × M2
B mol gáz2
m(gáz1) =A × M1
A mol gáz1
Átlagos moláris tömeg
A × M1 + B x M2
M=-------------------
A+B
7
m(gáz2) =(1-X) × M2
(1-X) mol gáz2
m(gáz1) =X × M1
X mol gáz1
Átlagos moláris tömeg
X × M1 + (1-X) x M2
M=-------------------
1
vagyis M=X × M1 + (1-X) x M2
8
m(gáz2) =4 x 28 g
4 mol nitrogéngáz
m(gáz1) =1 × 32 g
1 mol oxigéngáz
Átlagos moláris tömeg
1 × 32 + 4 x 28
M=------------------- = 28,8 g/mol
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Gázelegyek átlagos moláris tömege
By Erzsébet Dóka
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