Question

Exercitiile 1 si 2………..

Answer 1

Răspuns:

1)

MC=12g/mol

n=m/M=360/12=30moli C

1mol C..........6,023x10²³atomi

30mol..............x atomi

x=30x6,023x10²³atomi/1=calculeaza

2)

MMg=24g/mol

n=m/M=480/12=40moli Mg

1mol C..........6,023x10²³atomi

40mol..............y atomi

y=40x6,023x10²³atomi/1=calculeaza

Explicație: