2. a) H₂SO₄, ZnSO₄, FeSO₄, Fe₂(SO₄)₃
b) CH₄, CO₂, NH₃, PH₃
c) HCl, HBr, HI, H₂S
d) H₃PO₄, Na₃PO₄, Ca₃(PO₄)₂
3. Acizii : H₂SO₄, HCl, HBr, HI, H₂S, H₃PO₄
M H₂SO₄= 2A H + A S + 4A O
=2*1+32+4*16=
=34+64=98 uam => μ H₂SO₄ = 98 g/mol
M HCl= A H + A Cl
= 1+35,5=36,5 uam => μ HCl = 36,5 g/molM
M HBr = A H+ A Br
= 1+80= 81 uam => μ HBr= 81 g/mol
M HI= A H+ A I
= 1+ 127= 128 uam => μ HI= 128 g/mol
M H₂S= 2A H + A S
= 2+32=34 uam => μ H₂S = 34 g/mol
M H₃PO₄= 3A H+ A P + 4A O
= 3+31+64=34+64=98 uam => μ H₃PO₄= 98 g/mol
Sper că te-am ajutat!
