Răspuns :
M=3XAH+1XAP+ 4XAO
=3X1+1X31+4X16
=3+31+64
=98g/mol
n=m/M
n1= 294/98
n1=3 moli
n2= 980/98
n2=10 moli
1. MH3PO4 = 3AH + AP + 4AO = 3×1+31+4×16 = 98g/mol
n = m/M = 294/98 = 3 moli H3PO4
2. n = m/M = 980/98 = 10 moli H3PO4
n = m/M = 294/98 = 3 moli H3PO4
2. n = m/M = 980/98 = 10 moli H3PO4