Question

1) Ce masa de aodiu e cuprinsa in 2,3 kmoli?
2) Cati moli sunt cuprinsi in 160g CARBON?

Answer 1

1) n = m/M , unde n-nr de moli, m-masa, M-masa moleculara
N=m/M=> m=N*M=23*2,3kmoli(pt ca sunt in kmoli,o sa fie kg)=529kg
2) n=m/M=160g/12=13,33moli