Question

calculati raportul atomic ,raportul de masa si compozitia procentuala pentru sulfat acid de potasiu .Se dau AS=32, Ak=39, Ao=16,AH = 1

Answer 1

Răspuns:

KHSO4- sulfat acid de potasiu

raport atomic: K: H:S:O=1:1:14

raport de masa: K: H:S:O=39:1:32:64

compozitie procentuala

M KHSO4=39+1+32+4×16=136g/mol

136g KHSO4............39gK......1gH..........32gS.............64gO

100g KHSO4..............xgK.......ygH..........zgS....................tgO

x=100×39/136= calculeaza

y=100×1/136= calculeaza

z= 100×32/136= calculeaza

t=100×64/136= calculeaza

Explicație: