Question

Calculati masa moleculara pentru : P2O3 ; Fe2O3 ; O3 ; MgO si Co2

Answer 1

$M_{P_{2}O_{3}}=31*2+16*3=62+48=110$

$M_{Fe_{2}O_{3}}=56*2+16*3=112+48=160$

$M_{O_{3}}=16*3=48$

$M_{MgO}=24+16=40$

$M_{Co_{2}}=59*2=118$