Question

Determina cantitatea desubstanta H3PO4 ce contine 12,04×10 la puterea a 23 a molecule .Multumesc

Answer 1

1 mol H3PO4......................6,022*10²³ molecule H3PO4
         n................................12,04*10²³ molecule H3PO4

$n= \dfrac{12,04*10^{23} }{6,022*10^{23} } =2\ moli\ H3PO4$