Question

Calculati numarul de molecule cuprinse in:
a. 2 moli CaCl 2 ;
b. 0,05 moli H 2 O.

Answer 1

Răspuns:

Explicație:

a.

1mol  CaCl2 ---------6,023.10²³molecule

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

x= 2  .  6,023.10²³=12,046 .10²³molecule CaCl2

8.

1mol H2O----------6,023.10²³molecule H2O

0,05 moli------------------y

y= 0,05  .  6,023.10²³=0,30115 .10²³molecule H2O