Question

Помогите посчитать AI2O3; SO2; H2SO4 по формуле( на фото) Срочно!!!!

Answer 1

M(Al2O3)=27*2+16*3=102 g/mol
W(AL)=27*2/102*100%=53%
W(O)=16*3/102*100% = 47%
 
M(SO2)=32+16*2 = 64 g/mol
W(S) = 32/64*100% = 50%
W(O2)=16*2/64*100% = 50%

M(H2SO4)=1*2+32+16*4=98 g/mol
W(H)=1*2/98*100%=2.04%
W(S)=32/98*100%=32.65%
W(O)=16*4/98*100%=65.31%

Answer 2

W(Al) = 53%
W(O) = 47%

W(S) = 50%
W(O) = 50%

W(H) = 2% 
W(S) = 32%
W(O) = 65%