Question

Câți protoni exista in:
a) 3 moli de Na
b) 320g S
c) 56 Kg Fe
Vă rooooog!!!​

Answer 1

Răspuns:

Explicație:

a.

3moli Na

cati protoni

1mol de atomi de Na ------6,023.10²³atomi Na-------11 . 6,023 .10²³ p

3moli Na-----------------------------------------------------------------x

x=3 . 11. 6,023.10²³p = 198,759 .10²³ p

b.

n= m : M

n= 320g : 32g/moli= 10 moli S

1mol S------6,023.10²³atomi ---------16 . 6,023 .10²³ p

10 moli S-----------------------------------------x

x= 10 . 16 . 6,023.10²³ p= 963,68 .10²³ p

c.

56kg =56000g Fe

n= 56000g : 56g/moli= 1000moli Fe

1mol Fe------------6,023.10²³atomi Fe-----------------26 . 6,023.10²³ p

1000moli Fe-----------------------------------------------------------x

x= 1000 .26 . 6,023.10²³p=156598 .10²³ p