Question

Stabiliti compozitia procentuala pentru acid fosforic

Answer 1

     
H3PO4

M=3.1+31 +4.16=98
   
98g H3PO4---------3gH2--------31gP-------64gO
100--------------------X--------------Y-------------a

x=100.3:98=3,06 la suta H
 
Y=100.31:98=31,6 la suta P
a=100.64:98= 65, 3 la suta O