Question

apa contine:

a) 11.11% H si 88.89%O

b)11.11% O si 88.89% H

c) 30% H si 60% O

eu vreau demonstratia. de unde aflam care e corecta

Answer 1

M(O2)=32 g/mol
c=16/18*100=88,98%
M(H2)=2
c=2/18*100=11,11%
deci a 

Answer 2

30% H si 60% O asta misepareca este cea mai corecta