Question

determinati nr de molecule si nr de grame de acid sulfuric ce se vor gasi in 2.5 moli de acid sulfuric

Dau coroana​

Answer 1

Răspuns:

Explicație:

n= m : M

1 M= 2 +32 +4.16=98-------> 98g/moli

m= n . M

m= 2,5 moli . 98g/moli=245g H2 SO4

mol H2SO4----------6,022.10²³molecule

2,5 moli    -----------------------x

x= 2,5 . 6,022.10²³ =15, 055 .10²³molecule H2SO4