Question

URGENT DAU COROna masa de Ca3(PO4)2 care contin 32g oxigen​

Answer 1

Răspuns:

Explicație:

MCa3(PO4)2 =3*40+2*31+8*16=310 g/mol

310 g Ca3(PO4)2......120 g Ca

x................................32g

x=310 g*32 g/120 g=82,66g