Question

Масова частка H3PO4
За прикладом нижче

Answer 1

Ответ:

Mr (H³PO⁴) = (1×3)+ 31+ (16×4) = 98

W (H) = 1×3: 98 × 100% = 3%

W (P)= 31: 98 × 100% =32%

W (O) = 16×4 : 98 × 100%= 65%