Question

Se da formula SO2.Sa se afle: a) raportul atomic b) raportul masic c) compozitia procentuala.

Answer 1

SO2

r.a.=1S : 2O=1:2

r.m.=AS : 2AO=32 : 2.16=32: 32 =1: 1

Comp. proc . prin masa moleculara

MSO2=32+32=64-----> 1mol=64 g

64 g SO2--------32 g S-------32 gO

100g----------------x--------------------y

x=100.32 : 64=

y=100.32 : 64=