Răspuns:
Explicație:
HCl Conc. proc. prin masa moleculara
M=1 + 35,5=36,5 ------> 36,5 g/moli
36,5g HCl-------1gH--------35,5 g Cl
100g---------------x-------------------y
x= 100 .1 : 36,5=2,74%H
y= 100.35,5 : 36,5=97,26% Cl
H2SO4
M= 2+32 +4.16=98------> 98g/moli
98g H2SO4--------2gH------32 gS------64gO
100g----------------- x-----------y--------------z
x=100 .2 :98=2,04% H
y= 100.32 :98 =32,65% S
z= 100 .64 : 98=65,31% O
