Question

2 moli N2,
Grame=?
Molecule=?
Litri=?

3 moli O2
Grame=?
Molecule=?
Litri=?
Urgent, multumesc.

Answer 1

Răspuns:

Explicație:

2moli N2

MN2=2.14=28------->28g/moli-----> 1mol azot=28g

n=m: M

m=n.M

m= 2moli . 28g/moli=56 g azot

1mol azot-------------6,023.10²³ moleculede azot

2moli--------------------------x

x=2 . 6,023.10²³ molecule azot=12,046 .10²³molecule

VN2= 2moli .22,4 L /moli= 44,8 L

3moli O2

MO2=2.16=32------->32g/mol

m=3moli .32g/moli=96 g oxigen

1mol oxigen -----------6,024.10²³molecule oxigen

3moli--------------------------y

y=3 . 6,023.10²³ molecule oxigen =

VO2 =3moli . 22,4 L/moli=67,2 L